APA-ийн эшлэл(7 дахь хэвлэлт)

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Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Organisation for Economic Co-operation and Development. Committee on Tourism, Organisation for Economic Co-operation and Development, ба ProQuest (Firm). OECD Studies on Tourism: Italy : Review of Issues and Policies. [Paris]: OECD, 2011.

MLA -ийн эшлэл (9 дэх хэвлэлт)

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