MANN, H.T. Williamson, D.
Water treatment and sanitation: a handbook of simple methods for rural areas in /[by] H.T. Mann and D.Williamson - 2nd ed, - London Intermediate Technology Publications 1979 - 92 p.
Includes glossary & bibliography.
090303123X
Water treatment
Rural areas
363.123 / MAN
Water treatment and sanitation: a handbook of simple methods for rural areas in /[by] H.T. Mann and D.Williamson - 2nd ed, - London Intermediate Technology Publications 1979 - 92 p.
Includes glossary & bibliography.
090303123X
Water treatment
Rural areas
363.123 / MAN