Citazione APA

Carr, J., & Yule, W. (1980). Behaviour modification for people with mental handicaps (2.).

Stile di citazione Chicago

Carr, Janet, e William Yule. Behaviour Modification for People with Mental Handicaps. 2. London, Croom Helm, 1980.

Citazione MLA

Carr, Janet, e William Yule. Behaviour Modification for People with Mental Handicaps. 2. 1980.