IRRI. (1990). 1990 supplement Publications of the international agricultural research and development centers. Philippines: IRRI.
Παραπομπή Chicago StyleIRRI. 1990 Supplement Publications of the International Agricultural Research and Development Centers. Philippines: IRRI, 1990.
Παραπομπή MLAIRRI. 1990 Supplement Publications of the International Agricultural Research and Development Centers. Philippines: IRRI, 1990.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.