APA (7th ed.) Citation

Spergel, I. A., & Curry, G. D. (1993). The National Youth Gang Survey: A research and development process. Research Press.

Chicago Style (17th ed.) Citation

Spergel, Irving A., and G. David Curry. The National Youth Gang Survey: A Research and Development Process. Research Press, 1993.

MLA (9th ed.) Citation

Spergel, Irving A., and G. David Curry. The National Youth Gang Survey: A Research and Development Process. Research Press, 1993.

Warning: These citations may not always be 100% accurate.