Jones, Robert P. (Robert Patrick), author
Simon & Schuster Paperbacks, 2017
Buku Teks
Peck, M. Scott (Morgan Scott), 1936-2005, author
Tian xia Wen hua Chu ban, 1995
Buku Teks
Arterburn, Stephen, author
Colorado, 2001
Buku Teks
Academic Press, 2014
eBooks
Huber, Carlo, author
The Council for Research Values and Philosophy , 2001
Buku Teks