Williamson, John
New York University Press, 1991
Buku Teks
Williamson, John
Harvester Wheatsheaf, 1991
Buku Teks
Williamson, John
Basic Books, Inc., 1983
Buku Teks
Chacholiades, Miltiades, author
McGraw-Hill, 1981
Buku Teks
Kreinin, Mordechai Elihau, author
Harcourt Brace Jovanovich, 1975
Buku Teks