Velz, Clarence J.
Applied stream sanitation, by Clarence J. Velz. - New York, Wiley-Interscience [1970] - ix, 619 p. illus., maps. 23 cm. - Environmental science and technology .
Includes bibliographical references.
0471905259
71120710
Stream self-purification.
TD764 / .V45 1970
Applied stream sanitation, by Clarence J. Velz. - New York, Wiley-Interscience [1970] - ix, 619 p. illus., maps. 23 cm. - Environmental science and technology .
Includes bibliographical references.
0471905259
71120710
Stream self-purification.
TD764 / .V45 1970