The Masagana/Margate system of planting rice a study of an agricultural innovation

The Masagana/Margate system of planting rice a study of an agricultural innovation

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书目详细资料
主要作者: Covar, Prospero R.
格式: 图书
出版: Quezon City 1960
主题:
Agriculture > Research.
Rice > Philippine Islands.
Rice research.