Lancaster, T., & Stead, L. (2005). Self-help interventions for smoking cessation.
Cita Chicago (17th ed.)Lancaster, T., i L. Stead. Self-help Interventions for Smoking Cessation. 2005.
Cita MLA (9th ed.)Lancaster, T., i L. Stead. Self-help Interventions for Smoking Cessation. 2005.
Atenció: Aquestes cites poden no estar 100% correctes.