Tourism 77 Tourism and Travel 70 Leisure, Recreation and Tourism Economics, (New March 2000) 69 Mathematical recreations 28 Social Psychology and Social Anthropology, (New March 2000) 28 Ecotourism 25 Recreation 24 Tourism development 23 Marketing and Distribution 22 Sustainability 22 Tourist industry 21 Management 20 Natural Resource Economics, (New March 2000) 20 Case studies 18 Policy and Planning 18 Planning 17 Leisure 16 Marketing 16 Environmental impact 13 Outdoor recreation 13 Destinations 12 Consumer Economics 11 History 11 Land Resources 10 SPORTS & RECREATION / General 10 Sustainable development 10 Arts 9 Behaviour 9 Economic impact 9 Mathematics 9