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Petra : discovering a treasure |
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| APA | (1985). Petra : discovering a treasure, Torino: Tourist Research & Planning. | ||||
| MLA | Petra : discovering a treasure. Torino: Tourist Research & Planning, 1985. | ||||
| Harvard | 1985. Petra : discovering a treasure. Tourist Research & Planning, | ||||
| Chicago | Petra : discovering a treasure. Tourist Research & Planning, 1985. | ||||