May, R. M. (1976). Theoretical ecology: Principles and applications. W.B. Saunders Company.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रMay, Robert M. Theoretical Ecology: Principles and Applications. Philadelphia: W.B. Saunders Company, 1976.
एमएलए (9वां संस्करण) प्रशस्ति पत्रMay, Robert M. Theoretical Ecology: Principles and Applications. W.B. Saunders Company, 1976.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.