Cruz, C. (1975). The feasibility study on a refractory plant [microform]. Photoduplication Service, University of the Philippines Library.
Chicago-Zitierstil (17. Ausg.)Cruz, Cecilio. The Feasibility Study on a Refractory Plant [microform]. Quezon City: Photoduplication Service, University of the Philippines Library, 1975.
MLA-Zitierstil (9. Ausg.)Cruz, Cecilio. The Feasibility Study on a Refractory Plant [microform]. Photoduplication Service, University of the Philippines Library, 1975.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.