edited by Roy C. Macridis, Bernard E. Brown
Wadsworth, 1972
Buku Teks
Wiarda, Howard J., author
Thomson Wadsworth, 2000
Buku Teks
Chilcote, Ronald H., author
Routledge, 2000
eBooks
edited by Roy C. Macridis, Bernard E. Brown
Dorsey Press, 1968
Buku Teks
Curtis, Michael, author
Harper & Row, 1978
Buku Teks