Dyfyniad APA

Cleland, C. c., & Swartz, J. (1969). Mental retardations: Approaches to institutional change. Crune & Starton.

Dyfyniad Arddull Chicago

Cleland, Charles carr, and J.D Swartz. Mental Retardations: Approaches to Institutional Change. London: Crune & Starton, 1969.

Dyfyniad MLA

Cleland, Charles carr, and J.D Swartz. Mental Retardations: Approaches to Institutional Change. Crune & Starton, 1969.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.