APA Citation

Duggal. (2008). Elements of environmental engineering (7th ed.). New Delhi: S. Chand & Company Ltd.

Chicago Style Citation

Duggal. Elements of Environmental Engineering. 7th ed. New Delhi: S. Chand & Company Ltd, 2008.

MLA Citation

Duggal. Elements of Environmental Engineering. 7th ed. New Delhi: S. Chand & Company Ltd, 2008.

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