APA引文

Tyagi, A., & Sing, V. UGC NET/SET environment science. Danika.

Chicago Edition Citation

Tyagi, Anil, and Virendra Sing. UGC NET/SET Environment Science. 2011: Danika.

MLA引文

Tyagi, Anil, and Virendra Sing. UGC NET/SET Environment Science. Danika.

警告：这些引文格式不一定是100％准确.