Saxe, Stephen O.
Oak Kholl Books , 1992
Buku Teks
Miller, John C.
Stanford University Press, 1965
Buku Teks
Hacker, Louis M., author
Columbia University Press, 1947
Buku Teks
Hacker, Louis M., author
Columbia University Press, 1947.
Buku Teks
edited by Frank Freidel and Norman Pollack
Rand McNally, 1963
Buku Teks