FAO. (1997). Improving agricultural extension: A reference manual. Rome: FAO.
Trích dẫn kiểu ChicagoFAO. Improving Agricultural Extension: A Reference Manual. Rome: FAO, 1997.
MLA引文FAO. Improving Agricultural Extension: A Reference Manual. Rome: FAO, 1997.
警告:這些引文格式不一定是100%准確.