000
00272nam a2200109Ia 4500
008
201201s9999 xx 000 0 und d
082
_a
628.1
100
_a
SINGH,GURCHARAN
245
0
_a
WATER SUPPLY AND SANITARY ENGINEERING .
260
_b
ND, STANDARD
_c
1970
942
_c
OB
999
_c
17198
_d
17198