IRRI. (1990). IRRI 1989 - Planning for the 1990's. Philippines: IRRI.
Chicago Style CitationIRRI. IRRI 1989 - Planning for the 1990's. Philippines: IRRI, 1990.
Cita MLAIRRI. IRRI 1989 - Planning for the 1990's. Philippines: IRRI, 1990.
Atenció: Aquestes cites poden no estar 100% correctes.