Marschal, Jacob, author
Yale University Press, 1972
Buku Teks
edited by Robert D. Dean, William H. Leahy, and David L. McKee
Free Press, 1970
Buku Teks
Cross, Rod, author
Martin Robertson, 1982
Buku Teks
edited by Daniel Bell and Irving Kristol
Basic Books, 1981
Buku Teks
edited by Marcel Boyer and Richard E. Kihlstrom
North-Holland Publishing, 1984
Buku Teks