Philippine Islands. Panama-Pacific International Exposition Board & San Francisco. Panama-Pacific International Exposition, 1915. (1980). Cement raw materials of the Philippines [microform]. Photoduplication Service, University of the Philippines Library.
Chicago Style (17th ed.) CitationPhilippine Islands. Panama-Pacific International Exposition Board and 1915 San Francisco. Panama-Pacific International Exposition. Cement Raw Materials of the Philippines [microform]. Quezon City: Photoduplication Service, University of the Philippines Library, 1980.
MLA (9th ed.) CitationPhilippine Islands. Panama-Pacific International Exposition Board and 1915 San Francisco. Panama-Pacific International Exposition. Cement Raw Materials of the Philippines [microform]. Photoduplication Service, University of the Philippines Library, 1980.