Carlson, Carl Walter,  1907- <br/><br/>
Water fit to use / 
by Carl Walter Carlson, Illustrated with photos. and with drawings by Aline Hansens. 
 - New York :  The John Day Company,  1966. 
 - 127 p. :  ill. ;  24 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water--Supply--Juvenile literature.