000 00274 a2200109 4500
000 nam a22 7a 4500
020 _a9788121903325
100 _aDD Kohli & R C Kohli
245 _aA Textbook of Estimating and Costing
260 _b S CHAND & COMPANY LTD.
942 _cBK
999 _c119055
_d119055