000
00287nam a2200121Ia 4500
008
220201s1966 xx 000 0 eng d
082
_a
628
100
_a
Singhal, RP
245
2
_a
A tb of sanitary engineering
260
_b
Roorkee: Mis S. Singhal
_c
1966
300
_a
149
942
_2
ddc
999
_c
73752
_d
73752