Dyfyniad APA

Stead, L., Perera, R., & Lancaster, T. (2007). A systematic review of interventions for smokers who contact quitlines.

Dyfyniad Arddull Chicago

Stead, L., R. Perera, and T. Lancaster. A Systematic Review of Interventions for Smokers Who Contact Quitlines. 2007.

Dyfyniad MLA

Stead, L., et al. A Systematic Review of Interventions for Smokers Who Contact Quitlines. 2007.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.