APA استشهاد

Kumar, A. (2008). Environmetal awareness. Daya Publishing.

استشهاد بنمط شيكاغو

Kumar, Arvind. Environmetal Awareness. Delhi: Daya Publishing, 2008.

MLA استشهاد

Kumar, Arvind. Environmetal Awareness. Daya Publishing, 2008.