1. Relationship of institution size to quality of care: A review of the literature;Balla;American Journal of Mental Deficiency,1976
2. A note on professional testimony and opinions in the Partlow Case (letter);Balla;Mental Retardation,1979
3. Environmental variation in community care facilities for mentally retarded persons;Bjaanes;American Journal of Mental Deficiency,1974
4. Activities and the use of time by retarded persons in community care facilities;Butler,1978