00578cam a22002294a 450000100060000000300110000600500170001700800410003404000270007504100080010204400080011008000120011810000250013024500710015526000290022630000270025565000140028265000220029665000100031865000100032865500100033838367AR-SsjUBGM20251206163640.0250720s1978 xxu 000 0 eng d aAR-SsjUBGMcAR-SsjUBGM0 aeng axxu a622.3431 aHollister, Victor F.10aGeology of the porphyry copper deposits of the Western Hemisphere. aNew York :bAIME,c1978. a217 p. :bil. ;c25 cm 4aMinería 4aCobre porfídico 4aCobre 4aMetal 4aLibro