Dyfyniad APA

Keller, P. A., Koss, K. J., Baker, T. B., Bailey, L. A., & Fiore, M. C. (2007). Do state characteristics matter? State level factors related to tobacco cessation quitlines. BMJ Group.

Dyfyniad Arddull Chicago

Keller, Paula A., Kalsea J. Koss, Timothy B. Baker, Linda A. Bailey, and Michael C. Fiore. Do State Characteristics Matter? State Level Factors Related to Tobacco Cessation Quitlines. BMJ Group, 2007.

Dyfyniad MLA

Keller, Paula A., et al. Do State Characteristics Matter? State Level Factors Related to Tobacco Cessation Quitlines. BMJ Group, 2007.

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