L. Tubbs Stewart. (2005). A Systems Approach to Small Group Interaction. American: Mc Graw-Hill.
Čikaški stil citiranjaL. Tubbs Stewart. A Systems Approach to Small Group Interaction. American: Mc Graw-Hill, 2005.
MLA način citiranjaL. Tubbs Stewart. A Systems Approach to Small Group Interaction. American: Mc Graw-Hill, 2005.
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