000 003340000a22001330004500
001 EST
003 681.3.01 / J65
004 M
006 m
100 _aJohnson, Lyle R.
245 _aSystem structure in data, programs and computers
650 _a<PROCESAMIENTO DE DATOS><COMPUTACION><INFORMATICA><PROGRAMACION>
999 _c10591
_d10591