Heber, R. F. (1970). Epidemiology of mental retardation. Thomas.
Chicago Style (17th ed.) CitationHeber, Rick F. Epidemiology of Mental Retardation. Springfield, Ill.: Thomas, 1970.
MLA (9th ed.) CitationHeber, Rick F. Epidemiology of Mental Retardation. Thomas, 1970.
Warning: These citations may not always be 100% accurate.