Spergel, I. A., & Curry, G. D. (1992). National Youth Gang Intervention and Suppression Survey, 1980-1987. [Verlag nicht ermittelbar]. https://doi.org/10.3886/ICPSR09792.v2
Chicago Style (17th ed.) CitationSpergel, Irving A., and G. David Curry. National Youth Gang Intervention and Suppression Survey, 1980-1987. [Erscheinungsort nicht ermittelbar]: [Verlag nicht ermittelbar], 1992. https://doi.org/10.3886/ICPSR09792.v2.
MLA (9th ed.) CitationSpergel, Irving A., and G. David Curry. National Youth Gang Intervention and Suppression Survey, 1980-1987. [Verlag nicht ermittelbar], 1992. https://doi.org/10.3886/ICPSR09792.v2.
Warning: These citations may not always be 100% accurate.