Langan, J. (2010). Reading and study skills (10th ed.). McGraw-Hill.
Čikaški stil citiranja (17. izdanje)Langan, John. Reading and Study Skills. 10th ed. New York: McGraw-Hill, 2010.
MLA način citiranja (9. izdanje)Langan, John. Reading and Study Skills. 10th ed. McGraw-Hill, 2010.
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