Manahan, Stanley E., author
Willand Grand Press, [Date of publication not identified]
Buku Teks
Dasmann, Raymond F. (Raymond Fredric), author
John Wiley & Sons, 1972
Buku Teks
Reiss, Michael, author
University Press, 2000
Buku Teks
Manahan, Stanley E., author
Lewis Publisher, 1994
Buku Teks
Gaba, Jeffrey M., author
United States of America, 1994
Buku Teks