Hardman, M. L., Egan, M. W., & Drew, C. J. (2017). Human exceptionality: School, community, and family (Twelfth edition.). Cengage Learning.
Citace podle Chicago (17th ed.)Hardman, Michael L., M. Winston Egan, a Clifford J. Drew. Human Exceptionality: School, Community, and Family. Twelfth edition. Boston, MA: Cengage Learning, 2017.
Citace podle MLA (9th ed.)Hardman, Michael L., et al. Human Exceptionality: School, Community, and Family. Twelfth edition. Cengage Learning, 2017.
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