Griffin, Keith B.
Addison-Wesley, 1970
Buku Teks
edited by David F. Walker
John Wiley & Sons, 1980
Buku Teks
edited by Alan Gilbert
John Wiley & Sons, 1978
Buku Teks
Baldwin, George B. (George Benedict), 1920-
John Hopkins Press, 1967
Buku Teks
Hicks, Ursula K.
Clarendon Press, 1969
Buku Teks