APA (7th ed.) Citation
Harnack, R. V. (1964). Group discussion: Theory and technique. Appleton-Century-Crofts.
Chicago Style (17th ed.) Citation
Harnack, R. Victor. Group Discussion: Theory and Technique. New York: Appleton-Century-Crofts, 1964.
MLA (9th ed.) Citation
Harnack, R. Victor. Group Discussion: Theory and Technique. Appleton-Century-Crofts, 1964.
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