Cook, P. J. (1990). The Effect of Gun Availability on Violent Crime Patterns. In N. A. Weiner, M. A. Zahn, & R. J. Sagi (Eds.), Violence:  Patterns, Causes, Public Policy. San Diego, CA: Harcourt Brace Jovanovich.

Cook, P. J. “The Effect of Gun Availability on Violent Crime Patterns.” In Violence:  Patterns, Causes, Public Policy, edited by N. A. Weiner, M. A. Zahn, and R. J. Sagi. San Diego, CA: Harcourt Brace Jovanovich, 1990.

Cook PJ. The Effect of Gun Availability on Violent Crime Patterns. In: Weiner NA, Zahn MA, Sagi RJ, editors. Violence:  Patterns, Causes, Public Policy. San Diego, CA: Harcourt Brace Jovanovich; 1990.

Cook, P. J. “The Effect of Gun Availability on Violent Crime Patterns.” Violence:  Patterns, Causes, Public Policy, edited by N. A. Weiner et al., Harcourt Brace Jovanovich, 1990.

Cook PJ. The Effect of Gun Availability on Violent Crime Patterns. In: Weiner NA, Zahn MA, Sagi RJ, editors. Violence:  Patterns, Causes, Public Policy. San Diego, CA: Harcourt Brace Jovanovich; 1990.