Cita APA (7th ed.)

Hogg, J. (1986). Profound retardation and multiple impairment. Helm.

Cita Chicago (17th ed.)

Hogg, James. Profound Retardation and Multiple Impairment. London: Helm, 1986.

Cita MLA (9th ed.)

Hogg, James. Profound Retardation and Multiple Impairment. Helm, 1986.