Eshleman, Paul V. A thermal wave flowmeter for measuring combined sewer flows / 1973 by Paul V. Eshleman and Robert A. Blase - Washington : United States Government Printing Office, 1973 - viii, 99 p. : ill. ; 29 cm. - Environmental protection technology series . EPA-R2-73-145 Includes bibliographical references Subjects--Topical Terms: SewerPollution Dewey Class. No.: 628.352