The encyclopedia of ecotourism / edited by David B. Weaver. Weaver, David B. (David Bruce) Ecotourism. G156.5.E26 E53 2001 338.4791 21 ENC Topical chapters arranged under a common theme. Includes bibliographical references and index. Oxon, UK ; New York, NY : CABI Pub., c2001. c2001. 2001 Text xiv, 668 p. : eng