APA-viite (7. p.)
Callus, A. (2013). Becoming self-advocates: People with intellectual disability seeking a voice. Peter Lang.
Chicago-viite (17. p.)
Callus, Anne-Marie. Becoming Self-advocates: People with Intellectual Disability Seeking a Voice. New York: Peter Lang, 2013.
MLA-viite (9. p.)
Callus, Anne-Marie. Becoming Self-advocates: People with Intellectual Disability Seeking a Voice. Peter Lang, 2013.
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