APA Citatie

Xu, X., Bishop, E. E., Kennedy, S. M., Simpson, S. A., & Pechacek, T. F. (2014). Annual Healthcare Spending Attributable to Cigarette Smoking: An Update. Am J Prev Med.

Chicago Style citaat

Xu, Xin, Ellen E. Bishop, Sara M. Kennedy, Sean A. Simpson, en Terry F. Pechacek. "Annual Healthcare Spending Attributable to Cigarette Smoking: An Update." Am J Prev Med 2014.

MLA citatie

Xu, Xin, et al. "Annual Healthcare Spending Attributable to Cigarette Smoking: An Update." Am J Prev Med 2014.