Valdez, A., Curtis, R. L., & Kaplan, C. D. (2007). Aggressive crime, alcohol and drug use, and concentrated poverty in 24 U.S. urban areas. The American journal of drug and alcohol abuse, 33(4), 595-603. doi:10.1080/00952990701407637
Cita Chicago Style (17a ed.)Valdez, Avelardo, Russell L. Curtis, y Charles D. Kaplan. "Aggressive Crime, Alcohol and Drug Use, and Concentrated Poverty in 24 U.S. Urban Areas." The American Journal of Drug and Alcohol Abuse 33, no. 4 (2007): 595-603. https://doi.org/10.1080/00952990701407637.
Cita MLA (9a ed.)Valdez, Avelardo, et al. "Aggressive Crime, Alcohol and Drug Use, and Concentrated Poverty in 24 U.S. Urban Areas." The American Journal of Drug and Alcohol Abuse, vol. 33, no. 4, 2007, pp. 595-603, https://doi.org/10.1080/00952990701407637.