Starch INRA Hooper (Firm) & United States Travel Service. Research and Analysis Division. Belgium: A study of the international travel market. The Division, c1978.
Citace podle Chicago (17th ed.)Starch INRA Hooper (Firm) a United States Travel Service. Research and Analysis Division. Belgium: A Study of the International Travel Market. [Washington: The Division, c1978.
Citace podle MLA (9th ed.)Starch INRA Hooper (Firm) a United States Travel Service. Research and Analysis Division. Belgium: A Study of the International Travel Market. The Division, c1978.
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