Jacobson, J. W., & Mulick, J. A. (1997). Manual of diagnosis and professional practice in mental retardation (2nd print.). American Psychiatric Association.
Cita Chicago Style (17a ed.)Jacobson, John W., y James A. Mulick. Manual of Diagnosis and Professional Practice in Mental Retardation. 2nd print. Washington, D.C.: American Psychiatric Association, 1997.
Cita MLA (9a ed.)Jacobson, John W., y James A. Mulick. Manual of Diagnosis and Professional Practice in Mental Retardation. 2nd print. American Psychiatric Association, 1997.
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