APA ציטוט

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

Chicago Style (17th ed.) Citation

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

ציטוט MLA

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