APA ציטוט

Levinson, A., Hendershott, S., & Byers, T. (2002). The ID effect on youth access to cigarettes. BMJ Group.

Citação norma Chicago

Levinson, A., S. Hendershott, and T. Byers. The ID Effect On Youth Access to Cigarettes. BMJ Group, 2002.

ציטוט MLA

Levinson, A., S. Hendershott, and T. Byers. The ID Effect On Youth Access to Cigarettes. BMJ Group, 2002.