Welch, E. B.
Ecological effects of waste water / E. B. Welch, with hydrographic characteristics by T. Lindell. - Cambridge : Cambridge University Press, 1980. - xii, 337 p. : ill.
0521224950
Sewage--Environmental aspects.
Ecological effects of waste water / E. B. Welch, with hydrographic characteristics by T. Lindell. - Cambridge : Cambridge University Press, 1980. - xii, 337 p. : ill.
0521224950
Sewage--Environmental aspects.