National Science Development Board. (1974). National Water and Air Pollution Control Commission: Plans and programs for foreign technical assistance [microform]. Photoduplication Service,University of the Philippines.
Chicago-viite (17. p.)National Science Development Board. National Water and Air Pollution Control Commission: Plans and Programs for Foreign Technical Assistance [microform]. Quezon City: Photoduplication Service,University of the Philippines, 1974.
MLA-viite (9. p.)National Science Development Board. National Water and Air Pollution Control Commission: Plans and Programs for Foreign Technical Assistance [microform]. Photoduplication Service,University of the Philippines, 1974.
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