McCaskey, H. D. (1976). Platinum and associated rare metals in placer formations information for prospectors and placer miners [microform]. Photoduplication Service. University of the Philippines Library.
Citação norma ChicagoMcCaskey, Hiram Dryer. Platinum and Associated Rare Metals in Placer Formations Information for Prospectors and Placer Miners [microform]. Quezon City: Photoduplication Service. University of the Philippines Library, 1976.
Citação norma MLAMcCaskey, Hiram Dryer. Platinum and Associated Rare Metals in Placer Formations Information for Prospectors and Placer Miners [microform]. Photoduplication Service. University of the Philippines Library, 1976.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.