MLA

Dobbing, and A. D. B Clarke. Scientific Studies In Mental Retardation. Palgrave Macmillan UK, 1984.

APA

Dobbing, D., & Clarke, A. D. B. (1984). Scientific Studies in Mental Retardation. Palgrave Macmillan UK.

Chicago

Dobbing, and A. D. B Clarke. Scientific Studies In Mental Retardation. : Palgrave Macmillan UK, 1984.