Sewage treatment : basic principles and trends /
Bolton, Ronald Lomax.
Sewage treatment : basic principles and trends / R. L. Bolton, L. Klein. - London : Butterworths, 1961. - 161 p. : ill.
Sewage--Purification.
Sewage treatment : basic principles and trends / R. L. Bolton, L. Klein. - London : Butterworths, 1961. - 161 p. : ill.
Sewage--Purification.