Water in Ohio : summary and prospects. - Columbus, 1949- - v. : maps ; 28 cm. - Bulletin (Ohio. Water Resources Board) ; no. 20- . Bound with: no. 19, 21-23. LCCN: gs 49000131 Subjects--Topical Terms: Water-supply--Ohio LC Class. No.: TD224.O3 / A35 subser.