Ruttan, Vernon W. Strategies for agricultural development / Vernon W. Ruttan & Yujiro Hayami - St. Paul : Minnesota University , 1972 - 154p. : ill. ; 30 cm. - Prepared for USAID: PB-223 883 . Includes bibliographical references and index. Subjects--Topical Terms: Agricultural developmentUSAID Dewey Class. No.: 630.89 / RUT