May, R. M. (1976). Theoretical ecology: Principles and applications. W.B. Saunders Company.
Chicago Style (17. basım) AtıfMay, Robert M. Theoretical Ecology: Principles and Applications. Philadelphia: W.B. Saunders Company, 1976.
MLA (9th ed.) AtıfMay, Robert M. Theoretical Ecology: Principles and Applications. W.B. Saunders Company, 1976.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..