Kolshus, H. J. Modernization of paddy rice farming in Northeast Thailand with special reference to use of fertilizer.
Chicago-viite (17. p.)Kolshus, Halvor J. Modernization of Paddy Rice Farming in Northeast Thailand with Special Reference to Use of Fertilizer.
MLA-viite (9. p.)Kolshus, Halvor J. Modernization of Paddy Rice Farming in Northeast Thailand with Special Reference to Use of Fertilizer.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.