(1979). Group discussion, a practical guide to participation and leadership / Gerald M. Phillips, Douglas J. Pedersen, Julia T. Wood.
Chicago Style (17. basım) AtıfGroup Discussion, a Practical Guide to Participation and Leadership / Gerald M. Phillips, Douglas J. Pedersen, Julia T. Wood. 1979.
MLA (9th ed.) AtıfGroup Discussion, a Practical Guide to Participation and Leadership / Gerald M. Phillips, Douglas J. Pedersen, Julia T. Wood. 1979.
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