Burris, J. L., Wahlquist, A. E., & Carpenter, M. J. (2013). Characteristics of Cigarette Smokers Who Want to Quit Now versus Quit Later.
استشهاد بنمط شيكاغوBurris, Jessica L., Amy E. Wahlquist, و Matthew J. Carpenter. Characteristics of Cigarette Smokers Who Want to Quit Now Versus Quit Later. 2013.
MLA استشهادBurris, Jessica L., Amy E. Wahlquist, و Matthew J. Carpenter. Characteristics of Cigarette Smokers Who Want to Quit Now Versus Quit Later. 2013.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.