Cita APA

Stead, L., Hartmann-Boyce, J., Perera, R., & Lancaster, T. (2013). Telephone counselling for smoking cessation.

Citación estilo Chicago

Stead, L., J. Hartmann-Boyce, R. Perera, and T. Lancaster. Telephone Counselling for Smoking Cessation. 2013.

Cita MLA

Stead, L., et al. Telephone Counselling for Smoking Cessation. 2013.