APA (7th ed.) Citation

Spergel, I., Oh, S., Regulus, T., Alexander, A., Chance, R., & Kane, C. (1991). General Community Design Model. National Youth Gang Information Center.

Chicago Style (17th ed.) Citation

Spergel, Irving, Sandra Oh, Tom Regulus, Alba Alexander, Ron Chance, and Candice Kane. General Community Design Model. National Youth Gang Information Center, 1991.

MLA (9th ed.) Citation

Spergel, Irving, et al. General Community Design Model. National Youth Gang Information Center, 1991.