APA استشهاد

Anu Gopinath, Jitha, G., Resmi, P., & Jasmine, P. (2020). An Introduction to Environmental Studies. Vishal Publishing Co.

استشهاد بنمط شيكاغو

Anu Gopinath, G. Jitha, P. Resmi, و P. Jasmine. An Introduction to Environmental Studies. Jalandhar: Vishal Publishing Co, 2020.

MLA استشهاد

Anu Gopinath, et al. An Introduction to Environmental Studies. Vishal Publishing Co, 2020.