Cita APA (7th ed.)
Manoharachary, C., & Reddy, P. (2004). Principles of environmental studies. B.S.Pub.
Cita Chicago (17th ed.)
Manoharachary, C., i P.Jayarama Reddy. Principles of Environmental Studies. Hyderabad: B.S.Pub, 2004.
Cita MLA (9th ed.)
Manoharachary, C., i P.Jayarama Reddy. Principles of Environmental Studies. B.S.Pub, 2004.
Atenció: Aquestes cites poden no estar 100% correctes.