(2007). Distribution of Teaching & Learning Resources in California's Middle & High Schools. Regional Educational Laboratory Program.
Čikaški stil citiranja (17. izdanje)Distribution of Teaching & Learning Resources in California's Middle & High Schools. Regional Educational Laboratory Program, 2007.
MLA način citiranja (9. izdanje)Distribution of Teaching & Learning Resources in California's Middle & High Schools. Regional Educational Laboratory Program, 2007.
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