Greene, H. W. (1997). Snakes: The Evolution of Mystery in Nature. University of California.
Cita Chicago (17th ed.)Greene, Harry W. Snakes: The Evolution of Mystery in Nature. Berkeley: University of California, 1997.
Cita MLA (9th ed.)Greene, Harry W. Snakes: The Evolution of Mystery in Nature. University of California, 1997.
Atenció: Aquestes cites poden no estar 100% correctes.