000
00288nam a2200109Ia 4500
008
220201s1993 xx 000 0 eng d
100
_a
KHANNA O P
245
0
_a
TEXT BOOK OF MECHANICAL ESTIMATING AND COSTING
260
_a
DELHI
_b
DHANPAT RAI AND SONS
_c
1993
300
_a
336
942
_2
ddc
999
_c
91441
_d
91441