Johnston, L. D., O'Malley, P. M., & Bachman, J. G. (2001). Monitoring the future. Monitoring the future national survey results on drug use, 1975 - 2000.
Cita Chicago Style (17a ed.)Johnston, Lloyd D., Patrick M. O'Malley, y Jerald G. Bachman. "Monitoring the Future." Monitoring the Future National Survey Results on Drug Use, 1975 - 2000 2001.
Cita MLA (8a ed.)Johnston, Lloyd D., et al. "Monitoring the Future." Monitoring the Future National Survey Results on Drug Use, 1975 - 2000, 2001.
Precaución: Estas citas no son 100% exactas.