Corey, G., Corey, M. S., & Haynes, R. (2006). Student workbook for groups in action: Evolution and challenges. Thomson Brooks/Cole.
Citace podle Chicago (17th ed.)Corey, Gerald, Marianne Schneider Corey, a Robert Haynes. Student Workbook for Groups in Action: Evolution and Challenges. Belmont, Calif: Thomson Brooks/Cole, 2006.
Citace podle MLA (9th ed.)Corey, Gerald, et al. Student Workbook for Groups in Action: Evolution and Challenges. Thomson Brooks/Cole, 2006.
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