Soil fertility survey and research, the Philippines
Subtitle: soil survey and land classification of the Peñaranda River irrigation system area
By: report prepared for the Government of the Philippines by the Food and Agriculture Organization of the United Nations acting as executing agency for the United Nations Development Programme.
Contributors: Philippines.; United Nations Development Programme.
Publisher: United Nations Development Programme : Food and Agriculture Organization of the United  Nations
Published: 1972
Place of publication: Rome
Language: eng
Subjects: Soils -- Philippines -- Bulacan (Province); Soils -- Philippines -- Nueva Écija (Province); Land use -- Philippines -- Bulacan (Province); Land use -- Philippines -- Nueva Écija (Province); Soil surveys -- Philippines -- Bulacan (Province); Soil surveys -- Philippines -- Nueva Écija (Province)
Notes: Bibliography: v. 1, p. 213.
"AGL: SF/PHI 10, technical report 3."
Table of contents: title: v. 1. Text.