Starch INRA Hooper (Firm) & United States Travel Service. Research and Analysis Division. Belgium: A study of the international travel market. The Division, c1978.
Cita Chicago Style (17a ed.)Starch INRA Hooper (Firm) y United States Travel Service. Research and Analysis Division. Belgium: A Study of the International Travel Market. [Washington: The Division, c1978.
Cita MLA (9a ed.)Starch INRA Hooper (Firm) y United States Travel Service. Research and Analysis Division. Belgium: A Study of the International Travel Market. The Division, c1978.
Precaución: Estas citas no son 100% exactas.