000			00428nam a2200181Ia 4500
008			200428s9999||||xx |||||||||||||| ||und||
020			_c529.23
040			_aMAIN
041			_aEnglish
082			_a005.4 _bBEC
100			_aBeck, Leland L.
245			_aSystem software: introduction to systems programming
250			_a2nd ed.
260			_bAddison Wesley _c1990
300			_axvi,
650			_aCOMPUTER
942			_cGB
999			_c1251 _d1251