TY - BOOK AU - Douglass,Gordon K. TI - Agricultural sustainability in a changing World order SN - 0865316694 PY - 1984/// CY - Boulder, Colo PB - Westview Press KW - Agriculture KW - Addresses, essays, lectures KW - Agricultural productivity KW - Agricultural ecology KW - Food supply KW - Addresses, essays,, lectures N1 - Includes bibliographies and index; Open access ER -