Παραπομπή APA

World Tourism Organization. (1996). Awards for improving the coastal environment: The examlpe of the blue flag. Madrid, Spain: World Tourism Organization.

Παραπομπή Chicago Style

World Tourism Organization. Awards for Improving the Coastal Environment: The Examlpe of the Blue Flag. Madrid, Spain: World Tourism Organization, 1996.

Παραπομπή MLA

World Tourism Organization. Awards for Improving the Coastal Environment: The Examlpe of the Blue Flag. Madrid, Spain: World Tourism Organization, 1996.

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