Water fit to use /
Carlson, Carl Walter, 1907-
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.
Water--Supply--Juvenile literature.
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.
Water--Supply--Juvenile literature.