Sproull Bob. (2018). Problem Solving, Problem Prevention and Decision Making Guide. Routledge.
Čikaški stil citiranja (17. izdanje)Sproull Bob. Problem Solving, Problem Prevention and Decision Making Guide. Routledge, 2018.
MLA način citiranja (9. izdanje)Sproull Bob. Problem Solving, Problem Prevention and Decision Making Guide. Routledge, 2018.
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