APA (7th ed.) Citation

Lancaster, T., & Stead, L. (2005). Self-help interventions for smoking cessation.

Chicago Style (17th ed.) Citation

Lancaster, T., and L. Stead. Self-help Interventions for Smoking Cessation. 2005.

MLA (9th ed.) Citation

Lancaster, T., and L. Stead. Self-help Interventions for Smoking Cessation. 2005.

Warning: These citations may not always be 100% accurate.