APA (7th ed.) Citation

Castillo, P. G. (1975). A feasibility study on charcoal briquetting [microform]. Photoduplication Service, University of the Philippines Library.

Chicago Style (17th ed.) Citation

Castillo, Policronio G. A Feasibility Study on Charcoal Briquetting [microform]. Quezon City: Photoduplication Service, University of the Philippines Library, 1975.

MLA (9th ed.) Citation

Castillo, Policronio G. A Feasibility Study on Charcoal Briquetting [microform]. Photoduplication Service, University of the Philippines Library, 1975.