Cita APA

Ambasht, P. K., & Ambasht, R. S. (2001). Environment and pollution, an ecological approach (3.).

Chicago Edition Citation

Ambasht, P K., i R S. Ambasht. Environment and Pollution, an Ecological Approach. 3. New Delhi, CBS Publishers and Distributors, 2001.

Cita MLA

Ambasht, P K., i R S. Ambasht. Environment and Pollution, an Ecological Approach. 3. 2001.