APA (7th ed.) Citation

(1975). Mental retardation: The known and the unknown : information as of February 1, 1975.

Chicago Style (17th ed.) Citation

Mental Retardation: The Known and the Unknown : Information as of February 1, 1975. 1975.

MLA (9th ed.) Citation

Mental Retardation: The Known and the Unknown : Information as of February 1, 1975. 1975.

Warning: These citations may not always be 100% accurate.