Singh, S. P. (2008). An Introduction to Animal Ecology. Pointer Publishers.
Cita Chicago (17th ed.)Singh, S. P. An Introduction to Animal Ecology. Jaipur: Pointer Publishers, 2008.
Cita MLA (9th ed.)Singh, S. P. An Introduction to Animal Ecology. Pointer Publishers, 2008.
Atenció: Aquestes cites poden no estar 100% correctes.