00697nam a2200181Ia 4500 136565 BIBL 20160527193121.0 910920|1969||||pr |||||||||||||||||spa|d Hermida, Angel G. Local 110056 La explotación minera del cobre en Puerto Rico factores legales económicos y de contaminación /. [Río Piedras] [Universidad de Puerto Rico] [1969]. 142 p. 22 cm. Mine sanitation Law and legislation Puerto Rico. Local 136840 Mining industry and finance Puerto Rico. Local 136908 Puerto Rico Mines. Local 155382 Morera, Luis, ed. Local 138864 115073 115073 0 0 0 KGV_3940_000000000000000__H55_1969 0 cipr 197715 7 7 B 2016-05-27 119 0 KGV 3940 .H55 1969 70000000474804 2016-05-27 00:00:00 r:136565 z:NCC:L 6 0 0 0 333_850000000000000_H554E 0 ci 197720 10 10 B 2016-05-27 207190 0 333.85 H554e 80000001609059 2016-05-27 00:00:00 r:136565 z:NCC:D 6