Spetz, J., Chapman, S. A., Bates, T., Jura, M., & Schmidt, L. A. (2019). Social and Political Factors Associated With State-Level Legalization of Cannabis in the United States. Contemp Drug Probl.

Spetz, Joanne, Susan A. Chapman, Timothy Bates, Matthew Jura, ja Laura A. Schmidt. "Social and Political Factors Associated With State-Level Legalization of Cannabis in the United States." Contemp Drug Probl 2019.

Spetz, Joanne, et al. "Social and Political Factors Associated With State-Level Legalization of Cannabis in the United States." Contemp Drug Probl 2019.