REFERENCES
- ALEXANDER, DAVID. 1988. “Guarding a watery paradise”. International Wildlife. 18(3):4–11.
- BOZA, MARIO A. 1986. Costa Rica National Parks. Fundacion de Parques Nacionales. Costa Rica. 7 pp.
- BUDOWSKI, G. 1976. “Tourism and Environmental Conservation: Conflict, Coexistence, or Symbiosis”. Environmental Conservation. 3:
- BUTLER, RICHARD W. 1990. “Alternative tourism: pious hope or trojan hope?”. Journal of Travel Research. 28(3):40–45.
- Canadian World Almanac. 1990. Toronto: Global Press.
- CARR, ARCHIE and CARR, David. 1983. “A tiny country does things right”. International Wildlife. 13(5):20–24.
- COHEN, ERIK. 1987. “Alternative tourism: a critique”. Tourism Recreation Research. 12(2): 13–18.
- CROUSE, DEBBIE. 1988. “Up close with gorillas”. International Wildlife. 18(6):5–11.
- DE GROOT, R.S. 1983. “Tourism and conservation in the Galapagos Islands”. Biological Conservation. 26:291–300.
- FENNELL, DAVID A. and EAGLES, PAUL F.J. 1990. “Ecotourism in Costa Rica: a conceptual framework”. Journal of Park and Recreation Administration. 8(1):23–34.
- HALBERTSMA, N.F. 1988. “Proper management is a must”. Naturopa. 59:23–24.
- HUNT, CARLA. 1985. “Traveller's guide to the Galapagos”. Travel and Leisure. 15(9): 114.
- INGRAM, C. DENISE and DURST, PATRICK B. 1989. “Nature-oriented tour operators: travel to developing countries”. Journal of Travel Research. 28(2):11–15.
- INSKEEP, EDWARD. 1987. “Environmental planning for tourism”. Annals of Tourism Research. 14(1):118–135.
- KARIEL, HERBERT G. 1989. “Tourism and development: perplexity or panacea?”. Journal of Travel Research. 28(1):2–6.
- LAARMAN, JAN G. 1987. “Nature-oriented tourism in Costa Rica and Ecuador: diagnosis of research needs and project opportunities”. Forestry Private Enterprise Initiative (FPEI) No. 6, North Carolina State University, Raleigh, North Carolina.
- LAARMAN, JAN G. and DURST, PATRICK B. 1987. “Nature travel and tropical forests”. Forestry Private Enterprise Initiative (FPEI) No. 23, North Carolina State University, Raleigh, North Carolina.
- LOVE, T.F. 1988. “Nature tourism and neotropical deforestation: promises and pitfalls”. Paper presented at Second Symposium on Social Science in Resource Management, University of Illinois, Urbana, Illinois, June 6–9.
- MANNELL, ROGER C. and ISO-AHOLA, SEPPO E. 1987. “Psychological nature of leisure and tourism experience”. Annalsof Tourism Research. 14(3):314–331.
- MURPHY, PETER E. 1985. Tourism: A Community Approach. New York: Methuen.
- ROMERIL, MICHAEL. 1985. “Tourism and the environment: towards a symbiotic relationship”. International Journal of Environmental Studies. 25(4):215–218.
- SMALE, BRYAN J. A. 1990. “Characteristics of wilderness users: implications for visitor management”. Wilderness Management. Occasional Paper No. 14, Heritage Resources Centre, University of Waterloo, Waterloo, Ontario, pp. 31–46.
- TAYLOR, GORDON D. 1986. “Multi-dimensional segmentation of the Canadian pleasure travel market”. Tourism Management 7(3)146–153.
- TRAVIS, ANTHONY S. 1982. “Managing the environmental and cultural impacts of tourism and leisure development”. Tourism Management. 3:256–262.
- WILSON, MYSTIEA. 1987. “Nature-oriented tourism in Ecuador: assessment of industry structure and development needs”. Forestry Private Enterprise Initiative (FPEI) No. 20, North Carolina State University, Raleigh, North Carolina.
- WILSON, MYSTIE A. and LAARMAN, JAN G. 1987. “Nature tourism and enterprise development in Ecuador”. Forestry Private Enterprise Initiative (FPEI) No. 27, North Carolina State University, Raleigh, North Carolina.
- YOUNG, A.M. 1986. “Eco-enterprises: eco-tourism and farming of exotics in the tropics”. Ambio. 15(6):261–263.