Thompson, Kenneth W., author
Lousiana State University Press, 1980
Buku Teks
Digital Press, 1983
Buku Teks
Herbert, Theodore T., author
Macmillan, 1976
Buku Teks
edited by Robert K. Merton
Free Press, 1979
Buku Teks
The Brooking Institution, 1981
Buku Teks