VENUGOPAL PINGALI. (2004). STATE OFTHE INDIAN FARMER: INPUT MANAGEMENT,VOL.8. ACADEMIC FOUNDATION.
Chicago Style (17. basım) AtıfVENUGOPAL PINGALI. STATE OFTHE INDIAN FARMER: INPUT MANAGEMENT,VOL.8. NEW DELHI: ACADEMIC FOUNDATION, 2004.
MLA (9th ed.) AtıfVENUGOPAL PINGALI. STATE OFTHE INDIAN FARMER: INPUT MANAGEMENT,VOL.8. ACADEMIC FOUNDATION, 2004.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..