Folsom, Ralph Haughwout, author
West Publishing, 1992
Buku Teks
Folsom, Ralph Haughwout, author
West Group, 1996
Buku Teks
Schaffer, Richard
West , 1996
Buku Teks
Stephan, Paul B.
Charlottesville, 1996
Buku Teks
Hotchkiss, Carolyn
McGrawhill, 1994
Buku Teks