Waldo, Willis H., author
Van Nostrand Reinhold, 1960
Koleksi Publik
Rougier, Harry, author
W.W. Norton, 1970
Buku Teks
Meyer, Michael, author
Little, Brown, 1982
Buku Teks
Mundhenk, Robert T., author
Houghton Mifflin, 1978
Buku Teks
Ferre, John P., author
Charles E. Merrill Pub. Co., 1983
Buku Referensi