Ponsioen, J.A.
Mouton, 1969
Buku Teks
Moore, Wilbert E. (Wilbert Ellis), author
Prentice-Hall, 1963
Buku Teks
edited with an introduction by Robert A. Nisbet
Harper Torchbooks, 1972
Buku Teks
edited by Robert A. Nisbet
Blackwell, 1972
Buku Teks
Martin, Brian, author
Freedom Press, 1993
Buku Teks