FAO. (1991). Food aid in figures. Roma.
Trích dẫn kiểu ChicagoFAO. Food Aid in Figures. Roma, 1991.
MLA引文FAO. Food Aid in Figures. Roma, 1991.
警告：这些引文格式不一定是100％准确.
APA引文
FAO. (1991). Food aid in figures. Roma.
Trích dẫn kiểu ChicagoFAO. Food Aid in Figures. Roma, 1991.
MLA引文FAO. Food Aid in Figures. Roma, 1991.