1. A Study of the Dental Needs of Adults in the United States;Walls,1940
2. Dental Problem of Elementary School Children;Klein;Milbank Memorial Fund Quarterly,1938
3. Yearly Incidence of Dental Needs in Adults;Klein;J. A. D. A.,1945
4. Dental Needs Versus Dental Manpower;Klein;J. A. D. A.,1944
5. Civilian Dentistry in War-time;Klein;J. A. D. A.,1944