(2005). IR varieties and their impact. Philippines: International rice research institute (IRRI).
Dyfyniad Arddull ChicagoIR Varieties and Their Impact. Philippines: International rice research institute (IRRI), 2005.
Dyfyniad MLAIR Varieties and Their Impact. Philippines: International rice research institute (IRRI), 2005.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.