APA Edition Citation

Imtiyaz Hussain Zaheed. (2013). Textbook on environmental biology. Discovery publishing house.

Chicago Edition Citation

Imtiyaz Hussain Zaheed. Textbook on Environmental Biology. New Delhi: Discovery publishing house, 2013.

MLA Edition Citation

Imtiyaz Hussain Zaheed. Textbook on Environmental Biology. Discovery publishing house, 2013.

Warning: These citations may not always be 100% accurate.