Miech, R. A., Johnston, L., O’Malley, P. M., Bachman, J. G., Schulenberg, J., & Patrick, M. E. (2015). Trends in Use of and Attitudes Toward Marijuana Among Youth Before and After Decriminalization: The Case of California 2007–2013. Int J Drug Policy.

Miech, Richard A., Lloyd Johnston, Patrick M. O’Malley, Jerald G. Bachman, John Schulenberg, and Megan E. Patrick. "Trends in Use of and Attitudes Toward Marijuana Among Youth Before and After Decriminalization: The Case of California 2007–2013." Int J Drug Policy 2015.

Miech, Richard A., et al. "Trends in Use of and Attitudes Toward Marijuana Among Youth Before and After Decriminalization: The Case of California 2007–2013." Int J Drug Policy 2015.