Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.