APA (7th ed.) Zitazioa
Manoharachary, C., & Reddy, P. (2004). Principles of environmental studies. B.S.Pub.
Chicago Style (17th ed.) Zitazioa
Manoharachary, C., eta P.Jayarama Reddy. Principles of Environmental Studies. Hyderabad: B.S.Pub, 2004.
MLA (9th ed.) Zitazioa
Manoharachary, C., eta P.Jayarama Reddy. Principles of Environmental Studies. B.S.Pub, 2004.
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