Παραπομπή APA

World Tourism Organization. (1993). Cultural tourism: Tourism at world heritage cultural sites : the site manager's handbook. Madrid, Spain: World Tourism Organization.

Παραπομπή Chicago Style

World Tourism Organization. Cultural Tourism: Tourism At World Heritage Cultural Sites : The Site Manager's Handbook. Madrid, Spain: World Tourism Organization, 1993.

Παραπομπή MLA

World Tourism Organization. Cultural Tourism: Tourism At World Heritage Cultural Sites : The Site Manager's Handbook. Madrid, Spain: World Tourism Organization, 1993.

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