Παραπομπή APA

Emerson, E. (2001). Challenging behaviour: Analysis and intervention in people with severe intellectual disabilities (2nd ed.). Cambridge University Press.

Παραπομπή Chicago Style

Emerson, Eric. Challenging Behaviour: Analysis and Intervention in People with Severe Intellectual Disabilities. 2nd ed. Cambridge: Cambridge University Press, 2001.

Παραπομπή MLA

Emerson, Eric. Challenging Behaviour: Analysis and Intervention in People with Severe Intellectual Disabilities. 2nd ed. Cambridge University Press, 2001.