APA-referens (7:e uppl.)

Hardman, M. L. (1993). Human exceptionality: Society, school and family (4th.ed.). Allyn and Bacon.

Chicago-referens (17:e uppl.)

Hardman, Michael L. Human Exceptionality: Society, School and Family. 4th.ed. Boston: Allyn and Bacon, 1993.

MLA-referens (9:e uppl.)

Hardman, Michael L. Human Exceptionality: Society, School and Family. 4th.ed. Allyn and Bacon, 1993.