Eggan, Fred
The University of Chicago Press, 1950
Buku Teks
Dreitzel, Hans Peter
MacMillan Press , 1971
Buku Teks
Burke, W. Warner
University Associates, 1972
Buku Teks
University of Hawaii Press, 1992
Buku Teks
Firth, Raymond
Philosophical Library, 1953
Buku Teks