Bickel, Alexander M., author
Harper & Row, 1970
Buku Teks
Bickel, Alexander M., author
Harper Torchbooks, 1970
Buku Teks
Schwartz, Bernard, author
The Ronald Press, 1957
Buku Teks
Clayton, James E., author
E.P. Dutton, 1964
Buku Teks
Cox, Archibald, 1912-2004, author
Oxford University Press, 1976
Buku Teks