IRRI. (1977). Cropping systems research and development for the Asia rice farmer. Philippines: IRRI.
Chicago Style aipamenaIRRI. Cropping Systems Research and Development for the Asia Rice Farmer. Philippines: IRRI, 1977.
MLA aipamenaIRRI. Cropping Systems Research and Development for the Asia Rice Farmer. Philippines: IRRI, 1977.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.