(1996). Roots and nitrogen in cropping systems of the Semi- Arid tropics. Tsukuba, Ibaraki, Japan: Japan International Research Center for Agricultural Sciences.
Παραπομπή Chicago StyleRoots and Nitrogen in Cropping Systems of the Semi- Arid Tropics. Tsukuba, Ibaraki, Japan: Japan International Research Center for Agricultural Sciences, 1996.
Παραπομπή MLARoots and Nitrogen in Cropping Systems of the Semi- Arid Tropics. Tsukuba, Ibaraki, Japan: Japan International Research Center for Agricultural Sciences, 1996.
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