00534pamaa2200157 4500 0000019764 20060529090000.0 047112236X 338.4791 PRA G155.A1 PRA 1996 PRACTICING responsible tourism : international case studies in tourism planning, policy and development edited by Lynn C. Harrison and Winston Husbands. New York: John Wiley, 1996. xiii, 590p.: 25cm. Tourist trade Harrison, Lynn C. Husbands, Winston