ebrary, Inc, & Weaver, D. B. (2001). The encyclopedia of ecotourism. CABI Pub..
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Chicago-čujuhus (17. p.)
ebrary, Inc, juo David B. Weaver. The Encyclopedia of Ecotourism. Oxon, UK ; New York, NY: CABI Pub., 2001.
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MLA-čujuhus (9. p.)
ebrary, Inc, juo David B. Weaver. The Encyclopedia of Ecotourism. CABI Pub., 2001.
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