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

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

Λεπτομέρειες βιβλιογραφικής εγγραφής
Κύριος συγγραφέας: Caramancion, Maria Nylda Villena 1945-
Μορφή: Visual Material
Έκδοση: Quezon City Photoduplication Service. University of the Philippines Library 1977.
Θέματα:
Soils > Nitrogen content. > Philippines.