Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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