Soil fertility and research the Philippines [microform].

Bibliographische Detailangaben
Format:	Visual Material
Sprache:	English
Veröffentlicht:	Quezon City Photoduplication Service University of the Philippines Library, 1977.
Schlagworte:	Soil surveys > Philippines > Guimba (Nueva Ecija). Soil surveys > Philippines > Penaranda (Nueva Ecija). Land > Classifications > Philippines > Guimba (Nueva Ecija). Land > Classifications > Philippines > Penaranda (Nueva Ecija).