Power, P. W. (2006). A guide to vocational assessment (4th ed.). PRO-ED.
Čikaški stil citiranja (17. izdanje)Power, Paul W. A Guide to Vocational Assessment. 4th ed. Austin, Tex: PRO-ED, 2006.
MLA način citiranja (9. izdanje)Power, Paul W. A Guide to Vocational Assessment. 4th ed. PRO-ED, 2006.
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