Ayres, Quincy Claude Soil erosion and its control / Quincy Claude Ayres - 1st. ed. - New York : McGraw-Hill , 1936 - xi, 365p. : ill. ; 24 cm. - McGraw-Hill publications in agricultural engineering . Includes bibliographical references and index. Subjects--Topical Terms: AgricultureSoilsErosion Dewey Class. No.: 631.4 / AYR