APA Edition Citation

Duggal, K. (1998). Elements of environmental engineering. S. Chand.

Chicago Edition Citation

Duggal, K.N. Elements of Environmental Engineering. New Delhi: S. Chand, 1998.

MLA Edition Citation

Duggal, K.N. Elements of Environmental Engineering. S. Chand, 1998.

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