ScienceDirect (Online service) & Switzky, H. N. (2004). Personality and motivational systems in mental retardation. Elsevier Academic Press.
Chicago Style (17th ed.) CitationScienceDirect (Online service) and Harvey N. Switzky. Personality and Motivational Systems in Mental Retardation. Amsterdam ; Boston: Elsevier Academic Press, 2004.
MLA (9th ed.) CitationScienceDirect (Online service) and Harvey N. Switzky. Personality and Motivational Systems in Mental Retardation. Elsevier Academic Press, 2004.
Warning: These citations may not always be 100% accurate.