Cruz, C. (1975). The feasibility study on a refractory plant [microform]. Photoduplication Service, University of the Philippines Library.
Chicagoスタイル(17版)引用形式Cruz, Cecilio. The Feasibility Study on a Refractory Plant [microform]. Quezon City: Photoduplication Service, University of the Philippines Library, 1975.
MLA(9版)引用形式Cruz, Cecilio. The Feasibility Study on a Refractory Plant [microform]. Photoduplication Service, University of the Philippines Library, 1975.
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