Royer F. Cook, Janice A. Roehl, David I. SheppardU.S. Dept. of Justice, National Institute of Justice, Office of Program Evaluation : for sale by the Supt. of Docs., U.S. Govt. Print. Off.1980
by David I. Sheppard, Janice A. Roehl, Royer F. CookU.S. Dept. of Justice, National Institute of Justice, Office of Program Evaluation : for sale by the Supt. of Docs., U.S. Govt. Print. Off.1979