Cita APA (7th ed.)

Kumar, A. (2004). A textbook of environmental science. Aavishkar Publishers, Distributors.

Cita Chicago (17th ed.)

Kumar, Arvind. A Textbook of Environmental Science. Jaipur: Aavishkar Publishers, Distributors, 2004.

Cita MLA (9th ed.)

Kumar, Arvind. A Textbook of Environmental Science. Aavishkar Publishers, Distributors, 2004.