IRRI. (1981). Annual report 1980. Manila: IRRI.
Trích dẫn kiểu ChicagoIRRI. Annual Report 1980. Manila: IRRI, 1981.
MLA引文IRRI. Annual Report 1980. Manila: IRRI, 1981.
警告:這些引文格式不一定是100%准確.
IRRI. (1981). Annual report 1980. Manila: IRRI.
Trích dẫn kiểu ChicagoIRRI. Annual Report 1980. Manila: IRRI, 1981.
MLA引文IRRI. Annual Report 1980. Manila: IRRI, 1981.