00343nam a2200109Ia 4500008004100000100001900041245004200060260003200102942000700134952007500141999001700216240817s9999    xx            000 0 und d  aVazirani , V.N 0aCivil Engg Estimaking & Costing .  c, 1981a New Delhib Khanna  cBK  00104070aTCLbTCLd2024-08-21l0p37780r2024-08-21w2024-08-21yBK  c26644d26644