APA
(1959). Preparation : Of mentally retarded youth for gainful employment. Washington, USA: U.S. Government Printing Office.
Chicago
1959. Preparation : Of mentally retarded youth for gainful employment. Washington, USA: U.S. Government Printing Office.
Harvard
(1959). Preparation : Of mentally retarded youth for gainful employment. Washington, USA: U.S. Government Printing Office.
MLA
Preparation : Of mentally retarded youth for gainful employment. Washington, USA: U.S. Government Printing Office. 1959.
