Fennell, David A., 1963- Ecotourism : an introduction / David A. Fennell - 2nd ed. - London : Routledge, 2003 - xviii, 236 p. : ill., 24 cm. Includes bibliographical references (p. 207-227) ISBN: 0415303648 (hbk.) RM561.85 0415303656 (pbk.) Subjects--Topical Terms: Ecotourism