00409nam a22001457a 4500008004100000020001500041040005500056080001900111100002100130245002500151250001200176260004400188300001000232650002100242230324b        |||||||| |||| 00| 0 eng d  a817808497X  aNational Science LibrarycNational Science Library  aD 681.3.06bP1  aSommerville, Ian  aSoftware engineering  a6th ed.  aNepal: bPearson Education Ltd., c2003  a693p.  aComputer science