Não informado. (1918). Journal of the College of Agriculture. Hokkaido Imperial University.
Chicago-viite (17. p.)Não informado. Journal of the College of Agriculture. Sapporo, Japão: Hokkaido Imperial University, 1918.
MLA-viite (8. p.)Não informado. Journal of the College of Agriculture. Hokkaido Imperial University, 1918.
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