Chicago Vice Commission. Report, 1911.
Collier, John. Moving Pictures; Their Function and Proper Regulation. Playground Magazine, vol. 4, pp. 232-39, October, 1910.
Health Department Control of Venereal Diseases. Social Diseases, vol. 2, nos. 2-3, April and July, 1911.
Israels, Mrs. C.H. Dance Problem. Playground Magazine, vol. 4, pp. 242-50, October, 1910.
Juvenile Protective Association of Chicago. Reports on dance halls, moving picture theaters, saloons, department stores, etc. Chicago, 1911-12.
Minneapolis Vice Commission. Report, 1911, pp. 129-31.
Perry, C.A. Wider Use of the School Plant. New York, 1910.
Playground Association of America. Proceedings, 1907 to date. New York, 1908 to date.
Russell Sage Foundation. Recreation Bibliography. New York, 1912.