Health and nutrition on labor productivity the case of Bicol road workers [microform]

Health and nutrition on labor productivity the case of Bicol road workers [microform]

Bibliographic Details
Main Author: Dullin, Luz E. 1948-
Format: Visual Material
Language:English
Published: Quezon City Photoduplication Service, University of the Philippines Library 1978.
Subjects:
Road construction workers > Labor productivity. > Bicol region.
Labor productivity > Bicol region.
Hygiene.
Nutrition.