Cornel University Press, 1993
Buku Teks
Rosinger, Lawrence K., author
Alfred A. Knopf, 1953
Buku Teks
Rosinger, Lawrence K., author
Alfred A. Knopf, 1951
Buku Teks
Trattner, Walter I., author
Free Press, 1979
Buku Teks
Trattner, Walter I., author
Free Press, 1984
Buku Teks