Dowling, R. K., & Newsome, D. (2010). Global geotourism perspectives. Goodfellow Publishers Ltd..
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Chicago-čujuhus (17. p.)
Dowling, Ross Kingston, juo David Newsome. Global Geotourism Perspectives. Woodeaton, Oxford: Goodfellow Publishers Ltd., 2010.
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MLA-čujuhus (9. p.)
Dowling, Ross Kingston, juo David Newsome. Global Geotourism Perspectives. Goodfellow Publishers Ltd., 2010.
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