Dyfyniad APA

Tubbs, S. L. (2001). A systems approach to small group interaction (Seven edition.). McGraw-Hill.

Dyfyniad Arddull Chicago

Tubbs, Stewart L. A Systems Approach to Small Group Interaction. Seven edition. Boston, Mass: McGraw-Hill, 2001.

Dyfyniad MLA

Tubbs, Stewart L. A Systems Approach to Small Group Interaction. Seven edition. McGraw-Hill, 2001.

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