APA (7th ed.) Citation

Farrell, L., Fry, T., & Harris, M. (2011). A pack a day for 20 years: Smoking and cigarette pack sizes. Taylor & Francis.

Chicago Style (17th ed.) Citation

Farrell, L., T. Fry, and Mark Harris. A Pack a Day for 20 Years: Smoking and Cigarette Pack Sizes. Taylor & Francis, 2011.

MLA (9th ed.) Citation

Farrell, L., et al. A Pack a Day for 20 Years: Smoking and Cigarette Pack Sizes. Taylor & Francis, 2011.