Dyfyniad APA

Kumar, A., & Nehar, S. (2007). Environmental protection. Daya Publishing House.

Dyfyniad Arddull Chicago

Kumar, Arvind, and Shamshun Nehar. Environmental Protection. Delhi: Daya Publishing House, 2007.

Dyfyniad MLA

Kumar, Arvind, and Shamshun Nehar. Environmental Protection. Daya Publishing House, 2007.

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