APA引文

Tyagi, A., & Singh , V. (2013). UGC NET/SET environmental science. Danika Publishing Company.

Chicago Edition Citation

Tyagi, Anil, and Virendra Singh. UGC NET/SET Environmental Science. New Delhi: Danika Publishing Company, 2013.

MLA引文

Tyagi, Anil, and Virendra Singh. UGC NET/SET Environmental Science. Danika Publishing Company, 2013.

警告：这些引文格式不一定是100％准确.