International Rice Research Institute. (1974). An agro-climatic classification for evaluating cropping systems potentials in Southeast Asian rice growing regions. [s.n.].
Chicago-viite (17. p.)International Rice Research Institute. An Agro-climatic Classification for Evaluating Cropping Systems Potentials in Southeast Asian Rice Growing Regions. Los Banos, Laguna: [s.n.], 1974.
MLA-viite (9. p.)International Rice Research Institute. An Agro-climatic Classification for Evaluating Cropping Systems Potentials in Southeast Asian Rice Growing Regions. [s.n.], 1974.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.