APA引文

Singh, Y. K. (2006). Environmental science. New Age International (P) Ltd., Publishers.

Chicago Style (17th ed.) Citation

Singh, Y. K. Environmental Science. New Delhi: New Age International (P) Ltd., Publishers, 2006.

MLA引文

Singh, Y. K. Environmental Science. New Age International (P) Ltd., Publishers, 2006.

警告：這些引文格式不一定是100％准確.