000
00290nam a2200121Ia 4500
008
220201s1971 xx 000 0 eng d
082
_a
628.3
_b
MOD
100
_a
Modak, NV
245
0
_a
Sewage & waste water treatment
260
_b
Bombay: Somaiya Pub
_c
1971
300
_a
534
942
_2
ddc
999
_c
77999
_d
77999