Singh , A. (2006). Environment and water reources management. Adhyayan.
Chicago Style (17. basım) AtıfSingh , A. Environment and Water Reources Management. New Delhi: Adhyayan, 2006.
MLA (9th ed.) AtıfSingh , A. Environment and Water Reources Management. Adhyayan, 2006.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..