Cita APA

Singh, K. P., & Srivastava, A. K. (1994). Chemical Pollution Environment. Ashish Pub. House.

Citación estilo Chicago

Singh, K. P., and A. K. Srivastava. Chemical Pollution Environment. New Delhi: Ashish Pub. House, 1994.

Cita MLA

Singh, K. P., and A. K. Srivastava. Chemical Pollution Environment. Ashish Pub. House, 1994.