Distribution of the forms of nitrogen in some Philippine soils [microform]

Distribution of the forms of nitrogen in some Philippine soils [microform]

书目详细资料
主要作者: Caramancion, Maria Nylda Villena 1945-
格式: Visual Material
出版: Quezon City Photoduplication Service. University of the Philippines Library 1977.
主题:
Soils > Nitrogen content. > Philippines.