Cita APA (7a ed.)

Munafò, M., & Johnstone, E. (2008). Genes and cigarette smoking.

Cita Chicago Style (17a ed.)

Munafò, MR, y E. Johnstone. Genes and Cigarette Smoking. 2008.

Cita MLA (9a ed.)

Munafò, MR, y E. Johnstone. Genes and Cigarette Smoking. 2008.