Saborío-Jiménez, J. (2016). Comparative Diagnostic of Standards of Sustainability from Costa Rica and Colombia: Sustainable Tourism Certification and Quality Tourism Certificate / Environmental Seal.
Chicago-tyylinen lähdeviittausSaborío-Jiménez, Johan. Comparative Diagnostic of Standards of Sustainability From Costa Rica and Colombia: Sustainable Tourism Certification and Quality Tourism Certificate / Environmental Seal. 2016.
MLA-viiteSaborío-Jiménez, Johan. Comparative Diagnostic of Standards of Sustainability From Costa Rica and Colombia: Sustainable Tourism Certification and Quality Tourism Certificate / Environmental Seal. 2016.
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