Lua APA (7ú heag.)
Programme for International Student Assessment, Organisation for Economic Co-operation and Development, & ProQuest (Firm). (2012). Grade expectations: How marks and education policies shape students ambitions. OECD.
Lua i Stíl Chicago (17ú heag.)
Programme for International Student Assessment, Organisation for Economic Co-operation and Development, agus ProQuest (Firm). Grade Expectations: How Marks and Education Policies Shape Students Ambitions. [Paris]: OECD, 2012.
Lua MLA (9ú heag.)
Programme for International Student Assessment, et al. Grade Expectations: How Marks and Education Policies Shape Students Ambitions. OECD, 2012.
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