edited by Eric P. Hamp, Fred W. Householder, Robert Austerlitz
University of Chicago Press, 1966
Buku Referensi
edited by Martin Joos
University of Chicago Press, 1966
Buku Referensi
edited by Thomas A. Sebeok
Mouton, 1967
Buku Referensi
Harris, Zellig S.
D. Reidel , 1970
Buku Teks
Corder, Stephen Pit, editor
Penguin Books , 1973
Buku Teks