Saffer, H., Terry-McElrath, Y., & Wakefield, M. (2007). The Effect of Nicotine Replacement Therapy Advertising on Youth Smoking. National Bureau of Economic Research.
Chicago-Zitierstil (17. Ausg.)Saffer, Henry, Yvonne Terry-McElrath, und Melanie Wakefield. The Effect of Nicotine Replacement Therapy Advertising on Youth Smoking. National Bureau of Economic Research, 2007.
MLA-Zitierstil (9. Ausg.)Saffer, Henry, et al. The Effect of Nicotine Replacement Therapy Advertising on Youth Smoking. National Bureau of Economic Research, 2007.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.