Ayer, A. J. (Alfred Jules), 1910-1989, author
Penguin Books, 1980
Buku Teks
Ayer, A. J. (Alfred Jules), 1910-1989, author
Dover, 1952
Buku Teks
Cassirer, Ernst, author
B. Cassirer, 1923-29
Buku Teks
Routledge, 1993
Buku Teks
Pike, Kenneth L. (Kenneth Lee), 1912-2000, author
Summer Institute of Linguistics , 1993
Buku Teks