Stead, L., Buitrago, D., Preciado, N., Sanchez, G., Hartmann-Boyce, J., & Lancaster, T. (2013). Physician advice for smoking cessation.
Lua i Stíl Chicago (17ú heag.)Stead, L., D. Buitrago, N. Preciado, G. Sanchez, J. Hartmann-Boyce, agus T. Lancaster. Physician Advice for Smoking Cessation. 2013.
Lua MLA (9ú heag.)Stead, L., et al. Physician Advice for Smoking Cessation. 2013.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.