APA ציטוט

De, A. K., & De, A. K. (2009). Environment and ecology. New Age International (P) Ltd., Publishers.

Chicago Style (17th ed.) Citation

De, Anil K., and Arnab Kumar De. Environment and Ecology. New Delhi: New Age International (P) Ltd., Publishers, 2009.

ציטוט MLA

De, Anil K., and Arnab Kumar De. Environment and Ecology. New Age International (P) Ltd., Publishers, 2009.