Gunton, George
Appelton and Company , 1899
Buku Teks
Arnaud, A. A.
Woodhead-Faulkner, 1985
Buku Teks
Mennell, Robert L., author
West Publishing, 1994
Buku Teks
by George G. Bogert ... [and others]
Foundation Press, 2012
Buku Teks
Scott, Austin Wakeman, 1884-1981, author
Little, Brown, 1960
Buku Teks