American Association on Mental Deficiency. (1940). American journal of mental deficiency. American Association on Mental Deficiency.
Lua i Stíl Chicago (17ú heag.)American Association on Mental Deficiency. American Journal of Mental Deficiency. Washington, D.C: American Association on Mental Deficiency, 1940.
Lua MLA (9ú heag.)American Association on Mental Deficiency. American Journal of Mental Deficiency. American Association on Mental Deficiency, 1940.
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