@article{oai:ir.kagoshima-u.ac.jp:00009754,
 author = {SUMI, Akio and KATAYAMA, Tadao C.},
 journal = {Memoirs of the Faculty of Agriculture, Kagoshima University},
 month = {2016-10-28},
 pages = {67--74},
 title = {The Present Situation and the Problems of Land Use and Crop Production in Central and West African Countries : A Comparison of the Annual Amount of Precipitation and Net Primary Productivity in those Countries},
 volume = {24},
 year = {}
}