ID:DA03401981
Washington (State). University. Child Development and Mental Retardation Center
University of Washington. College of Education. Child Development and Mental Retardation Center
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edited by Sharon Landesman, Peter M. Vietze, Michael J. Begab
American Association on Mental Retardation c1987 NICHD-Mental retardation research centers series
Available at 7 libraries
edited by Gene P. Sackett
University Park Press c1978 NICHD-Mental retardation research centers series . Observing behavior ; v. 2
University Park Press c1978 NICHD-Mental retardation research centers series . Observing behavior ; v. 1
Available at 10 libraries