edited by S.M. Waddams
University of Toronto Press, 1971
Buku Teks
Murray, John Edward
Bobbs-Merrill, 1976
Buku Teks
Dawson, John Philip
Foundation Press, 1969
Buku Teks
Farnsworth, E. Allan
University casebook series, 1995
Buku Teks
Kunz, Christina L.
West Publishing, 2013
Buku Teks