Swan, John
Emond Montgomery Publications Limited, 1985
Buku Teks
edited by S.M. Waddams
University of Toronto Press, 1971
Buku Teks
Murray, John Edward, author
Bobbs-Merrill, 1976
Buku Teks
Dawson, John Philip, author
Foundation Press, 1969
Buku Teks
Farnsworth, E. Allan
University casebook series, 1995
Buku Teks