National Forum Foundation. (1955). Teacher's guide for Planning my future (3rd ed.). National Forum Foundation.
Čikaški stil citiranja (17. izdanje)National Forum Foundation. Teacher's Guide for Planning My Future. 3rd ed. Chicago: National Forum Foundation, 1955.
MLA način citiranja (8. izdanje)National Forum Foundation. Teacher's Guide for Planning My Future. 3rd ed. National Forum Foundation, 1955.
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