APA استشهاد

Arvind, K. (2013). Environmental science: Empirical studies. Daya.

استشهاد بنمط شيكاغو

Arvind, Kumar. Environmental Science: Empirical Studies. New Delhi: Daya, 2013.

MLA استشهاد

Arvind, Kumar. Environmental Science: Empirical Studies. Daya, 2013.