00667cam a22002534a 4500 EM-000762 AR-SsjUBGM 20250619152900.0 250228s1943 xxu 000 0 eng d AR-SsjUBGM AR-SsjUBGM eng xxu 622.2 Bernewitz, M. W. Von 5145 Handbook for prospectors and operators of small mines. 4th ed. New York : McGraw-Hill, 1943. 547 p. : il. ; 18 cm Incluye glosario de términos. Minería 1372 Libro 14 LB cdu dbem 2004-09-06 7916 7916 0 0 cdu 0 0 EM EM EMC 1987-05-19 Donación - Ing. Omar N. Villafañe 1686 0 622.2 BERh EM-1686 2025-04-05 00:00:00 2025-04-05 LB