Woll, Peter.
Norton, 1963
Buku Teks
Woll, Peter, author
Norton, 1963
Buku Teks
Davis, James W., Jr., author
Free, 1974
Buku Teks
Rourke, Francis E., author
John Hopkins University Press, 1972
Buku Teks
Sayre, Wallace S., author
Barnes & Noble, 1964
Buku Teks