Lenczowski, George, author
Cornell University Press, 1956
Buku Teks
edited by Sylvester E. Berki
Health, 1966
Buku Teks
edited by John Duns, Arlen Duke, Brendan Sweeney
Edward Elgar Publishing, 2015
Buku Teks
Lewis, Bernard, author
Weidenfeld and Nicolson, 1998
Buku Teks
Palmer, Monte, author
Thomson Wadsworth, 2007
Buku Teks