Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

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