TY - BOOK ED - International Union for conservation of nature and natural resources . ED - United Nations Environment Programme. ED - World Wildlife Fund. ED - Food and Agriculture Organization of the United Nations. ED - United Nations Educational, Scientific, and Cultural Organization TI - World conservation strategy: living resource conservation for su stainable development U1 - 333.72 22 PY - 1980/// CY - Gland, Switzerland PB - International Union for Conservation of Natu re and Natural Resources (IUCN) KW - Conservation of natural resources KW - Economic aspects KW - Environmental policy KW - International cooperation N1 - Includes bibliographical references ER -