(1996). Roots and nitrogen in cropping systems of the Semi- Arid tropics. Tsukuba, Ibaraki, Japan: Japan International Research Center for Agricultural Sciences.
Chicago Style aipamenaRoots and Nitrogen in Cropping Systems of the Semi- Arid Tropics. Tsukuba, Ibaraki, Japan: Japan International Research Center for Agricultural Sciences, 1996.
MLA aipamenaRoots and Nitrogen in Cropping Systems of the Semi- Arid Tropics. Tsukuba, Ibaraki, Japan: Japan International Research Center for Agricultural Sciences, 1996.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.