APA (7th ed.) Citation

Spergel, I., Oh, S., Alexander, A., Laseter, R., Kane, C., Regulus, T., . . . Chance, R. (1991). Executive Summary: Prototype Models. National Youth Gang Information Center.

Chicago Style (17th ed.) Citation

Spergel, Irving, Sandra Oh, Alba Alexander, Robert Laseter, Candice Kane, Thomas Regulus, Kenneth Ehrensaft, and Ron Chance. Executive Summary: Prototype Models. National Youth Gang Information Center, 1991.

MLA (9th ed.) Citation

Spergel, Irving, et al. Executive Summary: Prototype Models. National Youth Gang Information Center, 1991.