Velz, Clarence J.
Applied stream sanitation by Clarence J. Velz. - 1st ed. - New York Wiley-Interscience 1970 - ix, 619 p. illus., maps. 23 cm. - Environmental science and technology .
Includes bibliographies
0471905259
Stream self-purification
628.39 / VEL/1970
Applied stream sanitation by Clarence J. Velz. - 1st ed. - New York Wiley-Interscience 1970 - ix, 619 p. illus., maps. 23 cm. - Environmental science and technology .
Includes bibliographies
0471905259
Stream self-purification
628.39 / VEL/1970