Klein, S. B. (1991). Learning: Principles and applications (2nd ed.). McGraw-Hill.
Čikaški stil citiranja (17. izdanje)Klein, Stephen B. Learning: Principles and Applications. 2nd ed. New York: McGraw-Hill, 1991.
MLA način citiranja (9. izdanje)Klein, Stephen B. Learning: Principles and Applications. 2nd ed. McGraw-Hill, 1991.
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