A study of the pollution and natural purification of the Upper Mississippi River
Subtitle: surveys and laboratory studies
By: by H.R. Crohurst.
Series: Public health bulletin -- no. 203
Publisher: U.S. G.P.O.
Published: 1932
Place of publication: Washington
Language: eng
Number of pages: 113
Subjects: Water -- Pollution -- Minnesota.; Water -- Pollution -- Wisconsin.; Mississippi River.