Cita APA (7a ed.)

Block, C. R., & Block, R. (1980). Patterns of Change in Chicago Homicide: The Twenties, the Sixties, and the Seventies. Illinois Criminal Justice Information Authority.

Cita Chicago Style (17a ed.)

Block, Carolyn Rebecca, y Richard Block. Patterns of Change in Chicago Homicide: The Twenties, the Sixties, and the Seventies. [Erscheinungsort nicht ermittelbar]: Illinois Criminal Justice Information Authority, 1980.

Cita MLA (9a ed.)

Block, Carolyn Rebecca, y Richard Block. Patterns of Change in Chicago Homicide: The Twenties, the Sixties, and the Seventies. Illinois Criminal Justice Information Authority, 1980.