Cita APA

Kumar,Arvind, & Nehar,Shamshun. (2007). Environmental protection. Daya Publishing House.

Chicago Edition Citation

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

Cita MLA

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