00462cam a22001694a 4500003001000000005001700010008004100027040002500068041000800093044000800101080001000109245008700119250001300206260003300219650002100252655001900273AR-SsjUIB20250710162802.0250429s1969    xxk           000 0 eng d  aAR-SsjUIBcAR-SsjUIB0 aeng  axxk  a662.200aBlasters' handbook :ba manual describing explosives and practical methods of use.  a15th ed.  aWilmington :bDupont,c1969. 7aExplosivos2lemb 7aLibro2unescot