000 00283nam a22001337a 4500
020 _a9780070586703
082 _a658.15
100 _aRIGGS JAMES L
245 _aENGINEERING ECONOMICS
250 _a4TH
260 _aNEW DELHI
_bTMH
_c1996
300 _aXXI, I.12 P
942 _cBK
999 _c8483
_d8483