Travis, Charles, author
Clarendon Press, 1989
Buku Teks
edited by Sidney Hook
University Press, 1969
Buku Teks
Schneider, Hans Julius, author
Markono Print Media Pte Ltd, 2014
Buku Teks
Katz, Jerrold J., author
Harper & Row, 1966
Buku Teks
Vendler, Zeno, author
Cornell University Press, [1967]
Buku Teks