(1990). IRRI 1989: Planning for the 1990's. International Rice Research Institute.
Cita Chicago (17th ed.)IRRI 1989: Planning for the 1990's. Manila: International Rice Research Institute, 1990.
Cita MLA (9th ed.)IRRI 1989: Planning for the 1990's. International Rice Research Institute, 1990.
Atenció: Aquestes cites poden no estar 100% correctes.