Agricultural policies and world markets / Alex F. McCalla, Timothy E. Josling. McCalla, Alex F., 1937- Josling, Tim, 1940- Agriculture Economic aspects. Agriculture and state. International economic relations. HD1415 .M37 1985 338.18 19 MCA Includes bibliographies and index. New York : Macmillan ; London : Collier Macmillan, c1985. c1985. 1985 Text xviii, 286 p. : eng