Cita APA (7th ed.)

Sarkar, S. (2014). A textbook of environmental studies. Mangalam Publisher.

Cita Chicago (17th ed.)

Sarkar, Sukanta. A Textbook of Environmental Studies. Delhi: Mangalam Publisher, 2014.

Cita MLA (9th ed.)

Sarkar, Sukanta. A Textbook of Environmental Studies. Mangalam Publisher, 2014.