Marvell, T. B., & Moody, C. E. (1996). Specification problems, police levels, and crime rates. Criminology, 34(4), 609-646. doi:10.1111/j.1745-9125.1996.tb01221.x
Cita Chicago Style (17a ed.)Marvell, Thomas B., y Carlisle E. Moody. "Specification Problems, Police Levels, and Crime Rates." Criminology 34, no. 4 (1996): 609-646. https://doi.org/10.1111/j.1745-9125.1996.tb01221.x.
Cita MLA (8a ed.)Marvell, Thomas B., y Carlisle E. Moody. "Specification Problems, Police Levels, and Crime Rates." Criminology, vol. 34, no. 4, 1996, pp. 609-646, https://doi.org/10.1111/j.1745-9125.1996.tb01221.x.
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