(2019). The survey of adult skills: Reader's companion (Third edition.). Organisation for Economic Co-Operation and Development.
Чикаго-гийн эшлэл (17 дахь хэвлэлт)The Survey of Adult Skills: Reader's Companion. Third edition. Paris, France: Organisation for Economic Co-Operation and Development, 2019.
MLA -ийн эшлэл (9 дэх хэвлэлт)The Survey of Adult Skills: Reader's Companion. Third edition. Organisation for Economic Co-Operation and Development, 2019.
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