1. The field clinic as a means of supplying psychological service to the small school in Nebraska;Baller;Journal of Exceptional Children,1940
2. The field clinic as a means of supplying psychological service to the small school in Nebraska;Baller;Journal of Exceptional Children,1940
3. The psychologist in the school system;Cornell;Journal of Consulting Psychology,1942
4. School psychologist at mid-century: A report of the Thayer Conference on the foundations, qualifications, and training of school psychologist,1955
5. The handbook of clinical practice by George A. Kelly,1985