Cita APA (7a ed.)

Ellis, N. R. (1978). International review of research in mental retardation. Academic Press.

Cita Chicago Style (17a ed.)

Ellis, Norman R. International Review of Research in Mental Retardation. New York: Academic Press, 1978.

Cita MLA (8a ed.)

Ellis, Norman R. International Review of Research in Mental Retardation. Academic Press, 1978.