Fennell, David A., 1963-, Ecotourism / David A. Fennell. - Fourth edition. - xviii, 336 pages ; 26 cm Includes bibliographical references and index. ISBN: 9780415829649 RM582.35 041582964X 9780415829656 0415829658 LCCN: 2014-012615 Subjects--Topical Terms: Ecotourism.