000
00300nam a2200109Ia 4500
008
220201s1987 xx 000 0 eng d
100
_a
ISI
245
0
_a
Handbook on water supply & drainage SP: 35 ( set) 1987
260
_b
New Delhi : Bureau of Indian Standards
_c
1987
300
_a
173
942
_2
ddc
999
_c
84797
_d
84797