Παραπομπή σε μορφή APA (7η εκδ.)

Philippine Chamber of Mines and Oil. (1977). Needs of the mining industry. Necesidades de la industria minera [microform]. Photoduplication Service, University of the Philippines Library.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Philippine Chamber of Mines and Oil. Needs of the Mining Industry. Necesidades De La Industria Minera [microform]. Quezon City: Photoduplication Service, University of the Philippines Library, 1977.

Παραπομπή σε μορφή MLA (9th εκδ.)

Philippine Chamber of Mines and Oil. Needs of the Mining Industry. Necesidades De La Industria Minera [microform]. Photoduplication Service, University of the Philippines Library, 1977.