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Contains information about title and source of a journal
Källa:	The changing world of travel marketing : Le marketing, facteur d'évolution du tourisme = El marketing, factor de evolución de turismo : Vth International travel research seminar, Nassau (Bahamas), june 1971
	år:1972

The changing world of travel marketing : Le marketing, facteur d'évolution du tourisme = El marketing, factor de evolución de turismo : Vth International travel research seminar, Nassau (Bahamas), june 1971