1943. De Middelnederlandse Bewerking von Liber VIII 'De Proprietatibus Rerum' van Bartholomaeus Anglicus. Vol. 1: Inleiding en Commentaar, 187 pp. Vol. 2: Tekst, 78 pp. Brussels. M. A. thesis [unpublished].
1948. Linguistische Studien in verband met de Germaanse Anlautgroep *hw-. Vol. 1, 40 pp. Vol. 2, 259 pp. Brussels. Doctoral dissertation [unpublished].
1951. [Translation into Dutch] Afrikaanse Kunsten en Moderne Wereld, by Albert Maurice. Brussels: À l'Enseigne du Chat qui Pêche. 63 pp.
1959. [Prepublication of mimeographed editions of syllabi] Cours de linguistique générale. Elisabethville: Université Officielle du Congo. 256 pp. [First draft issued in three parts in 1957, respectively 58, 25, and 16 pp.]
1959. Cours de linguistique appliquée aux langues africaines. Vol. 1: Phonétique et Phonologie, 58 pp. Vol. 2: Morphologie, 69 pp. Elisabethville: Université Officielle du Congo. [First draft issued in 1957, 114 pp.]
1959. Encyclopedie van de Germaanse filologie. Vol. 1: Taalkundig gedeelte. Elisabethville: Unversité Officielle du Congo. 185 pp.
1967. Swahili language handbook. Washington, DC: Center for Applied Linguistics. 232 pp.
1969. Old Norse literature and mythology: A symposium. [Editor.] Austin, TX: University of Texas Press. 345 pp.
1975. Proceedings of the 1974 Annual Meeting of the Southwest Conference on Asian Studies. [Co-editor with Alfred Collins.] Austin, TX: S.W.C.A.S.
1975. Language surveys in developing nations: papers and reports on sociolinguistic surveys. [Co-editor with Sirarpi Ohannessian and Charles Ferguson.] Arlington, VA: Center for Applied Linguistics.
1976. Proceedings of the 1975 Annual Meeting of the Southwest Conference on Asian Studies. [Co-editor with Alfred Collins.] Austin, TX: S.W.C.A.S. 201 pp.
1976. Proceedings of the Conference on Language Testing and Levels of Proficiency in South Asian Languages. [Co-editor with Herman van Olphen and Andrée Sjoberg.] Austin, TX: S.A.R.C. 235 pp.
1977. Proceedings of the 1976 Annual Meeting of the Southwest Conference on Asian Studies. [Editor.] Sherman, TX: Austin College Press. 288 pp.
1978. Proceedings of the 1977 Annual Meeting of the Southwest Conference on Asian Studies. [Editor.] Austin, TX: S.A.R.C. 219 pp.
1978. Linguistic and literary studies in honor of Archibald A. Hill. 4 vols. [Co-editor, with M. A. Jazayery and Werner Winter.] Vol. 1: General and theoretical linguistics, 412 pp. Vol. 2: Descriptive linguistics, 363 pp. Vol. 3: Historical and comparative linguistics, 374 pp. Vol. 4: Linguistics and literature - sociolinguistics and applied linguistics, 392 pp. The Hague, Paris, New York: Mouton.
1980. Man and the ultimate: A Symposium. [Editor.] Austin, TX: Southwest Branch of the American Oriental Society. 61 pp.
1980. Language in Tanzania. [Co-editor with P. C. Hill.] London: Oxford University Press, for International African Institute. xiii, 428 pp.
1982. The Indo-Europeans in the Fourth and Third Millennia. [Editor.] Ann Arbor, MI: Karoma. 186 pp.
1982. Rural and Urban Multilingualism. [Editor.] (International Journal of the Sociology of Language, 34.) The Hague: Mouton. 181 pp.
1982. Language, Society, and Paleoculture: Essays by Edgar C. Polomé. Selected and introduced by Anwar S. Dil. Stanford, CA: Stanford University Press. 383 pp.
1982. Homage to Georges Dumézil. [Editor.] (Journal of Indo-European Studies, Monograph 3.) Washington, DC: The Institute for the Study of Man.
1984. Essays in Memory of Karl Kernéyi. [Editor.] (Journal of Indo-European Studies, Monograph 4.) Washington, DC: The Institute for the Study of Man. 144 pp.
1987. Proto-Indo-European: The archeology of a linguistic problem. Studies in honor of Marija Gimbutas. [Co-editor with Susan Nacev-Skomal.] Washington, DC: The Institute for the Study of Man. 396 pp.
1989. Essays on Germanic Religion. (Journal of Indo-European Studies, Monograph 6.) Washington, DC: The Institute for the Study of Man. 396 pp.
1990. Research Guide on Language Change. (Trends in Linguistics: Studies and Monographs, Vol. 48.) Berlin/New York: Mouton de Gruyter.
1992. Reconstructing Languages and Cultures. [Co-editor with Werner Winter.] (Trends in Linguistics: Studies and Monographs, Vol. 58.) Berlin/New York: Mouton de Gruyter.
1996. Indo-European Religion after Dumézil. [Editor.] (Journal of Indo-European Studies, Monograph 16.) Washington, DC: The Institute for the Study of Man. 186 pp.
1997. Varia on the Indo-European Past: Papers in Memory of Marija Gimbutas. [Co-editor with Miriam Robbins Dexter.] (Journal of Indo-European Studies, Monograph 19.) Washington, DC: The Institute for the Study of Man. 265 pp.
1997. Studies in honor of Jaan Puhvel. Vol. 2: Mythology and Religion. [Co-editor with John Greppin.] (Journal of Indo-European Studies, Monograph 21.) Washington, DC: The Institute for the Study of Man. 282 pp.
1998. Proceedings of the Seventh UCLA Indo-European Conference, Los Angeles, 1995. [Assistant editor to Angela della Volpe.] (Journal of Indo-European Studies, Monograph 27.) Washington, DC: The Institute for the Study of Man. 249 pp.