Butler, Mosher D. Conserving soil / Butler, Mosher D. - An east west ed. 2nd reprint - Princeton, N.J.: Van Nostrand, C1955. - 321 p.: illus.; 23 cm. Includes index Includes bibliography. LCCN: 55010532 Nat. Bib. No.: GB56-3452 Subjects--Topical Terms: Soil conservation. LC Class. No.: S623 / .B83 Dewey Class. No.: 631.45/BUC