Averbook, A. S. (1968). International tourism and the international hotel industry. s.n.].
Čikaški stil citiranja (17. izdanje)Averbook, Arthur Stephan. International Tourism and the International Hotel Industry. [S.l: s.n.], 1968.
MLA način citiranja (9. izdanje)Averbook, Arthur Stephan. International Tourism and the International Hotel Industry. s.n.], 1968.
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