Cita APA (7a ed.)

Spergel, I. A. (1967). Street gang work: Theory and practice. Doubleday.

Cita Chicago Style (17a ed.)

Spergel, Irving A. Street Gang Work: Theory and Practice. Garden City, N.Y: Doubleday, 1967.

Cita MLA (8a ed.)

Spergel, Irving A. Street Gang Work: Theory and Practice. Doubleday, 1967.