000
00319nam a2200109Ia 45e0
008
181001s1970 xx 000 0 und d
100
_a
Singhal RP.
245
2
_a
A text book on water supply engineering
260
_a
Roorkee
_b
Singhal Roorkee
_c
1970
300
_a
542
942
_2
ddc
_c
BK
999
_c
1973
_d
1973