Lowry, R. (1999). School violence, substance use, and availability of illegal drugs on school property among US high school students. The journal of school health, 69(9), 347-3355.
Cita Chicago Style (17a ed.)Lowry, R. "School Violence, Substance Use, and Availability of Illegal Drugs on School Property Among US High School Students." The Journal of School Health 69, no. 9 (1999): 347-3355.
Cita MLA (8a ed.)Lowry, R. "School Violence, Substance Use, and Availability of Illegal Drugs on School Property Among US High School Students." The Journal of School Health, vol. 69, no. 9, 1999, pp. 347-3355.
Precaución: Estas citas no son 100% exactas.