. . . . . . . . . "Guidebooks"@en . "Rehabilitation of families at risk for mental retardation : progress report [By] Rick Heber [and others]"@en . . . "Longitudinal studies"@en . "Rehabilitation of families at risk for mental retardation"@en . "Rehabilitation of families at risk for mental retardation" . . . . . . . . "University of Wisconsin. Rehabilitation Research and Training Center in Mental Retardation." . . . .