Booth, Ken, author
George Allen and Unwin, 1985
Buku Teks
edited by Myron H. Nordquist, John Norton Moore
Martinus Nijhoff Publishers, 1995
Buku Teks
Sohn, Louis B., author
West, 1984
Buku Teks
edited by Lewis M. Alexander
Ohio State University Press, 1967
Buku Teks
Harrison, James, author
Cambridge University Press, 2011
Buku Teks