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Tourism : past, present and future |
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| APA | (1988). Tourism : past, present and future, London: ELBS. | ||||
| MLA | Tourism : past, present and future. London: ELBS, 1988. | ||||
| Harvard | 1988. Tourism : past, present and future. ELBS, | ||||
| Chicago | Tourism : past, present and future. ELBS, 1988. | ||||