000
00313nam a2200109Ia 45e0
008
181001s1977 xx 000 0 und d
100
_a
B.N. Dutta
245
0
_a
Estimating and costing in civil Engg.
260
_a
Lucknow
_b
S.Dutta & com.
_c
1977
300
_a
906
942
_2
ddc
_c
BK
999
_c
2633
_d
2633