Dhankhar, R. (2006). Environmental studies. Daya Publishing House.
Čikaški stil citiranjaDhankhar, Rajesh. Environmental Studies. Delhi: Daya Publishing House, 2006.
MLA način citiranjaDhankhar, Rajesh. Environmental Studies. Daya Publishing House, 2006.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.