Phillips, G. M., Wood, J. T., & Pedersen, D. J. (1986). Group discussion, a practical guide to participation and leadership (2nd ed.). Harper & Row.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPhillips, Gerald M., Julia T. Wood, और Douglas J. Pedersen. Group Discussion, a Practical Guide to Participation and Leadership. 2nd ed. New York: Harper & Row, 1986.
एमएलए (9वां संस्करण) प्रशस्ति पत्रPhillips, Gerald M., et al. Group Discussion, a Practical Guide to Participation and Leadership. 2nd ed. Harper & Row, 1986.
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