Wearing, Stephen. Ecotourism : impacts, potentials, and possibilities / Stephen Wearing and John Neil. - Oxford : Butterworth-Heinemann, c1999. - xvii, 163 p. : ill. ; 25 cm. Includes bibliographical references (p. [145]-158) and index ISBN: 0750641371 (pbk.) Subjects--Topical Terms: Ecotourism. Dewey Class. No.: 338.4791 / WEA