Cita APA

Singh L B, Pandey P N, Bhola Mahto, & Singh R K. (2007). River pollution. A P H publishing.

Citación estilo Chicago

Singh L B, Pandey P N, Bhola Mahto, y Singh R K. River Pollution. New Delhi: A P H publishing, 2007.

Cita MLA

Singh L B, et al. River Pollution. A P H publishing, 2007.