000 00449nam a2200181Ia 4500
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041 _aENGLISH
082 _A005.7565 N1
100 _a"Lehman,John A"
245 0 _aSystems Design in the Fourth Generation
250 _a1st
260 _c1991
_b"John Wiley,Newyork"
500 _aYES
650 _aSystem Design
_bComputer Science
942 _cBK
999 _c236663
_d236663