ScienceDirect (Online service) & Ellis, N. R. (1966). International review of research in mental retardation. Academic Press.
Chicago Style (17th ed.) CitationScienceDirect (Online service) and Norman R. Ellis. International Review of Research in Mental Retardation. New York: Academic Press, 1966.
MLA (9th ed.) CitationScienceDirect (Online service) and Norman R. Ellis. International Review of Research in Mental Retardation. Academic Press, 1966.
Warning: These citations may not always be 100% accurate.