APA
"UN C. o. I. T. a. T., "UN C. o. I. T. a. T., . (1963). Recommendation on international travel and tourism. : .
Chicago
"UN Conference on International Travel and Tourism", "UN Conference on International Travel and Tourism", . 1963. Recommendation on international travel and tourism. : .
Harvard
"UN C. o. I. T. a. T., "UN C. o. I. T. a. T., . (1963). Recommendation on international travel and tourism. : .
MLA
"UN Conference on International Travel and Tourism", "UN Conference on International Travel and Tourism", . Recommendation on international travel and tourism. : . 1963.
