JORDAN, T. E. (1966). The mentally retarded.-- Ed. 2. Charles E. Merril Pub. Co.
Lua i Stíl Chicago (17ú heag.)JORDAN, Thomas E. The Mentally Retarded.-- Ed. 2. Columbus: Charles E. Merril Pub. Co, 1966.
Lua MLA (9ú heag.)JORDAN, Thomas E. The Mentally Retarded.-- Ed. 2. Charles E. Merril Pub. Co, 1966.
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