Corey, G., & Corey, M. S. (1990). I never knew I had a choice (4th.ed.). Brooks/Cole.
Citace podle Chicago (17th ed.)Corey, Gerald, a Marianne Schneider Corey. I Never Knew I Had a Choice. 4th.ed. Pacific Grove: Brooks/Cole, 1990.
Citace podle MLA (9th ed.)Corey, Gerald, a Marianne Schneider Corey. I Never Knew I Had a Choice. 4th.ed. Brooks/Cole, 1990.
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