Chalmer, Bruce J., author
Marcel Dekker, 1987
Buku Teks
Volpe, E. Peter (Erminio Peter), author
Universal Books Stall, 1996"
Buku Teks
Corwin, Edward S., author
William Sloane, 1949
Buku Teks
Corwin, Edward S., author
United States of America, 1960
Buku Teks
Dubois, Bernard, author
Prentice-Hall, 2000
Buku Teks