Cita APA (7th ed.)

Pitchaiah, P. S. (1991). Water ecology pollution and management. Chugh Publications.

Cita Chicago (17th ed.)

Pitchaiah, P. Sankara. Water Ecology Pollution and Management. Allahabad: Chugh Publications, 1991.

Cita MLA (9th ed.)

Pitchaiah, P. Sankara. Water Ecology Pollution and Management. Chugh Publications, 1991.