APA-Zitierstil (7. Ausg.)

Verma, P. S., & Agarwal, V. K. (2000). Environmental biology (Principles of ecology). S. Chand & Company.

Chicago-Zitierstil (17. Ausg.)

Verma, P. S., und V. K. Agarwal. Environmental Biology (Principles of Ecology). New Delhi: S. Chand & Company, 2000.

MLA-Zitierstil (9. Ausg.)

Verma, P. S., und V. K. Agarwal. Environmental Biology (Principles of Ecology). S. Chand & Company, 2000.