000 00342cam a22001217a 4500
008 180718b1971 xxu||||| |||| 00| 0 eng d
082 _aX89 W893
100 _aGloyna, Earnest F.
245 _aWaste Stabilization ponds
_cby Earnest F. Gloyna
260 _aGeneva
_bWorld Health Organization
_c1971
300 _a175p
650 _aSewage lagoons.
999 _c411375
_d411375