IRRI. (1989). Climate and food security. Philippines: IRRI.
Dyfyniad Arddull ChicagoIRRI. Climate and Food Security. Philippines: IRRI, 1989.
Dyfyniad MLAIRRI. Climate and Food Security. Philippines: IRRI, 1989.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.