Correlates of productivity among tobacco farmers of Isabela [microform].

Correlates of productivity among tobacco farmers of Isabela [microform].

書目詳細資料
主要作者: Estrada, Robustiano J. 1938-
格式: Visual Material
語言:English
出版: Quezon City Photoduplication Service, University of the Philippines Library 1978.
主題:
Farmers > Philippines > Isabela.
Tobacco.