Dolan, Josephine A., author
WB Saunder comp , 1983
Buku Teks
Wolf, Hans Julius
University of Oklahoma Press, 1978
Buku Teks
Wade, Nicholas J., author
Springer, 2005
Buku Teks
edited by Richard S. Kirkendall
John Wiley , 1973
Buku Teks
Lichtheim, George
Routledge & Kegan Paul, 1964
Buku Teks