Proceedings of the eighth international congress of linguists / general editor, Eva Sivertsen
Oslo University Press, 1958
 Buku Teks SO
Computational linguistics : an international handbook on computer oriented language research and applications = Computerlinguistik
edited by Istvan Batori, Winfried Lenders, Wolfgang Putschke
Walter de Gruyter, 1989
 Buku Referensi
Proceedings of the ninth International Congress of Linguists, Cambridge Mass., August 27-31, 1962 / Edited by Horace G. Lunt
edited by Horace G. Lunt
Mouton, 1964
 Buku Teks
Crystal, David, 1941-
The Cambridge encyclopedia of language
Cambridge University Press, 1994
 Buku Referensi
Crystal, David, 1941-
The Cambridge encyclopedia of language
Cambridge University Press, 1991
 Buku Referensi