Hale, Robert D.
W.W. Norton , 1990
Buku Teks
Willo Pequegnat, editor
[, Springer], 2012
eBooks
edited by Alan F. Westin
W.W. Norton, 1961
Buku Teks
edited by George McKenna, Stanley Feingold
McGraw-Hill, 2013
Buku Teks
Burke, Barlow, author
West Publishing, 1993
Buku Teks