Cita APA (7a ed.)

Block, C. R., & Block, R. (1993). Street gang crime in Chicago. US Department of Justice, Office of Justice Programs, National Institute of Justice.

Cita Chicago Style (17a ed.)

Block, Carolyn R., y Richard Block. Street Gang Crime in Chicago. Washington, DC: US Department of Justice, Office of Justice Programs, National Institute of Justice, 1993.

Cita MLA (8a ed.)

Block, Carolyn R., y Richard Block. Street Gang Crime in Chicago. US Department of Justice, Office of Justice Programs, National Institute of Justice, 1993.