Slow sand filtration for community water supply : planning, design, construction, operation and maintenance / J.T. Visscher ... [et al. ; ed. M. Simpson ... et al. ; ill. L. Huijg]

Slow sand filtration for community water supply : planning, design, construction, operation and maintenance / J.T. Visscher ... [et al. ; ed. M. Simpson ... et al. ; ill. L. Huijg]