National Institute of Child Health and Human Development (Estados Unidos). Conference, American Association on Mental Retardation, Landesman, S., Vietze, P., & Begab, M. J. (1987). Living environments and mental retardation. American Association on Mental Retardation.
Cita Chicago Style (17a ed.)National Institute of Child Health and Human Development (Estados Unidos). Conference, American Association on Mental Retardation, Sharon Landesman, Peter Vietze, y Michael Jay Begab. Living Environments and Mental Retardation. Washington: American Association on Mental Retardation, 1987.
Cita MLA (9a ed.)National Institute of Child Health and Human Development (Estados Unidos). Conference, et al. Living Environments and Mental Retardation. American Association on Mental Retardation, 1987.
