4 books • 2 series
A Research Agenda for Sustainable Tourism
Projecting Population Change in the Interior Columbia River Basin (Classic Reprint)
Visitor Attitudes Toward Wilderness Fire Management Policy, 1971-84 (Classic Reprint)
Sustainable Tourism in Protected Areas (Best Practice Protected Area Guidelines S., #8) (World Commission on Protected Areas (WCPA) Best Practice Protected Area Guidelines S., #8)