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020 _a0071133062
082 _a338.4791 FOS
100 _aFoster,Dennis L
245 _aThe business of travel:agency operations and administration
260 _aMcgraw-Hill
300 _axvii, 407 p. : ill. ; 22cm
650 _aEcotourism--certification. Eco--labeling
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999 _c6137
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