APA (7th ed.) Citation

Valdez, A. (1997). Gangs: A guide to understanding street gangs (2. ed. expanded and updated includes photos.). LawTech Publ.

Chicago Style (17th ed.) Citation

Valdez, Al. Gangs: A Guide to Understanding Street Gangs. 2. ed. expanded and updated includes photos. San Clemente, Calif: LawTech Publ, 1997.

MLA (8th ed.) Citation

Valdez, Al. Gangs: A Guide to Understanding Street Gangs. 2. ed. expanded and updated includes photos. LawTech Publ, 1997.