Mashaw, Jerry L, author
Thomson/West, 2009
Buku Teks
Jaffe, Louis L., author
Little, Brown, 1972
Buku Teks
Breyer, Stephen G., 1938-, author
Little, Brown, 1982
Buku Teks
Breyer, Stephen G., 1938-, author
Little, Brown and Company, 1979
Buku Teks
Hart, James, author
Appleton-Century-Crofts, 1950
Buku Teks