N.Y. Charles Scribner's Sons , 1954
Buku Teks
Schneider, Jo Anne, author
Columbia University Press, 2006
Buku Teks
Sampson, Edward G., author
John Wiley & Sons, 1976
Buku Teks
Merton, Robert K., author
Harcourt Brace Jovanovich, 1976
Buku Teks
edited by Lawrence S. Wringtsman
Wadsworth, 1968
Buku Teks