Agricultural systems.

Agricultural systems : = agroecology and rural innovation for development / by: (書目-電子資源)

Genetics, biofuels and local farming system / by: (書目-語言資料,印刷品)

Tambon and village agricultural systems in northeast Thailand : = report of a workshop held at Khon Kaen University, February 22-26, 1982 / by: (書目-語言資料,印刷品)