Cita APA (7a ed.)

Cunningham, W. C., & Taylor, T. H. (1985). Crime and protection in America: A study of private security and law enforcement resources and relationships; executive summary. U.S. GPO.

Cita Chicago Style (17a ed.)

Cunningham, William C., y Todd H. Taylor. Crime and Protection in America: A Study of Private Security and Law Enforcement Resources and Relationships; Executive Summary. Washington, D.C: U.S. GPO, 1985.

Cita MLA (9a ed.)

Cunningham, William C., y Todd H. Taylor. Crime and Protection in America: A Study of Private Security and Law Enforcement Resources and Relationships; Executive Summary. U.S. GPO, 1985.