000			00346nam a22001217a 4500
020			_a0074604821
082			_a005.42 _bDON/SYS
100			_aDonovan, John J., _91666
245			_aSystems Programming _cJohn J. Donovan
260			_aNew Delhi : _bTata McGraw-Hill Publishing Company Limited, _cc1972.
300			_axviii, 488 p.: _b[80]
942			_cBK
999			_c1545 _d1545