Gaya APA
Indicators od Sustainable Development for Tourism Destinations A Guidebook. (2004).
Madrid:
World Tourism Organization.
Gaya Chicago
Indicators od Sustainable Development for Tourism Destinations A Guidebook.
.
Madrid:
World Tourism Organization,
2004.
Buku.
Gaya MLA
Indicators od Sustainable Development for Tourism Destinations A Guidebook.
.
Madrid:
World Tourism Organization,
2004.
Buku.
Gaya Turabian
Indicators od Sustainable Development for Tourism Destinations A Guidebook.
Madrid:
World Tourism Organization,
2004.
Buku.