VENUGOPAL PINGALI. (2004). STATE OFTHE INDIAN FARMER: INPUT MANAGEMENT,VOL.8. ACADEMIC FOUNDATION.
芝加哥风格引文VENUGOPAL PINGALI. STATE OFTHE INDIAN FARMER: INPUT MANAGEMENT,VOL.8. NEW DELHI: ACADEMIC FOUNDATION, 2004.
MLA引文VENUGOPAL PINGALI. STATE OFTHE INDIAN FARMER: INPUT MANAGEMENT,VOL.8. ACADEMIC FOUNDATION, 2004.
警告：这些引文格式不一定是100％准确.