Bittker, Boris I.
Warren, Gorham and Lamont, 1971
Buku Teks
Bittker, Boris I.
Warren, Gorham and Lamont, 1972
Buku Teks
Bittker, Boris I.
Warren, Gorham and Lamont, 1980
Buku Teks
Bittker, Boris I.
Warren,Gorham and Lamont, 1978
Buku Teks
Chommie, John C.
West Publishing, 1968
Buku Teks