Character and significance of highway runoff waters;
a preliminary appraisal.
A study prepared for the Washington State Highway Commission, Dept. of Highways and the Federal Highway Administration, by Robert O. Sylvester [and] Foppe B. DeWalle.

APA Citation

Sylvester, R. O. (Robert Ohrum)., DeWalle, F. B., United States. Federal Highway Administration., Washington (State). Dept. of Highways. (1972). Character and significance of highway runoff waters: a preliminary appraisal. Seattle: Dept. of Civil Engineering, University of Washington.

MLA Citation

Sylvester, Robert O. (Robert Ohrum), 1914-, Foppe B DeWalle, United States. Federal Highway Administration, and Washington (State). Dept. of Highways. Character And Significance of Highway Runoff Waters: a Preliminary Appraisal. Seattle: Dept. of Civil Engineering, University of Washington, 1972.