Παραπομπή APA

(1975). Aims, activities and fields of competence of national tourist organizations. Geneva: International Union of Official Travel Organisations : World Tourism Organization.

Παραπομπή Chicago Style

Aims, Activities and Fields of Competence of National Tourist Organizations. Geneva: International Union of Official Travel Organisations : World Tourism Organization, 1975.

Παραπομπή MLA

Aims, Activities and Fields of Competence of National Tourist Organizations. Geneva: International Union of Official Travel Organisations : World Tourism Organization, 1975.

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