Hardman, M. L., Egan, M. W., & Drew, C. J. (2017). Human exceptionality: School, community, and family (Twelfth edition.). Cengage Learning.
Čikaški stil citiranja (17. izdanje)Hardman, Michael L., M. Winston Egan, i Clifford J. Drew. Human Exceptionality: School, Community, and Family. Twelfth edition. Boston, MA: Cengage Learning, 2017.
MLA način citiranja (9. izdanje)Hardman, Michael L., et al. Human Exceptionality: School, Community, and Family. Twelfth edition. Cengage Learning, 2017.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.