Fowler, F. J., McCalla, M. E., & Mangione, T. W. (1979). Reducing residential crime and fear: The Hartford neighborhood crime prevention program : executive summary. [Washington]: Dept. of Justice, Law Enforcement Assistance Administration, National Institute of Law Enforcement and Criminal Justice : for sale by the Supt. of Docs., U.S. Govt. Print. Off..

Fowler, Floyd J., Mary Ellen McCalla, and Thomas W. Mangione. Reducing Residential Crime and Fear: The Hartford Neighborhood Crime Prevention Program : Executive Summary. [Washington]: Dept. of Justice, Law Enforcement Assistance Administration, National Institute of Law Enforcement and Criminal Justice : for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1979.

Fowler, Floyd J., Mary Ellen McCalla, and Thomas W. Mangione. Reducing Residential Crime and Fear: The Hartford Neighborhood Crime Prevention Program : Executive Summary. [Washington]: Dept. of Justice, Law Enforcement Assistance Administration, National Institute of Law Enforcement and Criminal Justice : for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1979.