Gellhorn, Ernest, author
West Publishing Company, 1972
Buku Teks
Lorch, Robert S., author
Wayne State University Press, 1969
Buku Teks
Boyle, Alan, author
Oxford University Press, 2007
Buku Teks
Davies, Jack, author
West Publishing, 1975
Buku Teks
edited by Julia M. Eckert, Brian Donahoe, Christian Strumpell
Cambridge University Press, 2012
Buku Teks