Ducusin, R. M. (1977). Separation leaching of an arsenical copper concentrate [microform]. Photoduplication Service. University of the Philippines Library.
Style de citation Chicago (17e éd.)Ducusin, Ruben M. Separation Leaching of an Arsenical Copper Concentrate [microform]. Quezon City: Photoduplication Service. University of the Philippines Library, 1977.
Style de citation MLA (9e éd.)Ducusin, Ruben M. Separation Leaching of an Arsenical Copper Concentrate [microform]. Photoduplication Service. University of the Philippines Library, 1977.
Attention : ces citations peuvent ne pas être correctes à 100%.