Platt, Nathaniel, author
Prentice-Hall, 1964
Buku Teks
edited Joseph Friedman and Daniel H. Weinberg
Sage, 1983
Buku Teks
Weaver, John D.
Little, Brown & Co., 1965
Buku Teks
McGuire, Edna
Macmillan, 1954
Buku Teks
Loebar, Thomas S
WW Norton, 1961
Buku Teks