00426cam a22001814a 4500003001000000005001700010008004100027040002500068041000800093044000700101080001000108100002400118245001600142250001100158260003500169650002100204655001900225AR-SsjUIB20250710145455.0250429s1976    ag            000 0 spa d  aAR-SsjUIBcAR-SsjUIB0 aspa  aag  a669.11 aPezzano, Pascual A.10aSiderurgia.  a3a ed.  aBuenos Aires :bAlsina,c1976. 7aSiderurgia2lemb 7aLibro2unescot