Tohutoro APA (7th ed.)
SMITH, R. (1998). AN INTRODUCTION TO MENTAL RETARDATION. MCGRAW-HILL.
Tohutoru Kātū Chicago (17th ed.)
SMITH, R.M. AN INTRODUCTION TO MENTAL RETARDATION. Londres: MCGRAW-HILL, 1998.
Tohutoro MLA (9th ed.)
SMITH, R.M. AN INTRODUCTION TO MENTAL RETARDATION. MCGRAW-HILL, 1998.
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