共 44 条
[1]
[Anonymous], 033 WORLD BANK
[2]
[Anonymous], J SUSTAIN TOUR
[3]
Boo E., 1993, Ecotourism: a guide for planners and managers., P15
[4]
Boo E., 1992, WILDLANDS HUMAN NEED
[5]
Bottrill C. G., 1995, Journal of Sustainable Tourism, V3, P45, DOI 10.1080/09669589509510707
[6]
Brandon K., 1993, Ecotourism: a guide for planners and managers., P134
[8]
Cater E., 1994, Ecotourism: a sustainable option?., P69
[9]
Cater E., 1994, ECOTOURISM SUSTAINAB
[10]
Ceballos-Lascurain H., 1993, Ecotourism: a guide for planners and managers., P12