TY - BOOK AU - Upton,M. TI - Agricultural production economics and resource-use SN - 0198594526 : AV - HD1415 .U67 1976 U1 - 630 UPT 22 PY - 1976/// CY - London, New York PB - Oxford University Press KW - Agriculture KW - Economic aspects N1 - Includes bibliographies and index ER -