Cita APA (7th ed.)

Brennan, P., Buffler, P., Reynolds, P., Wu, A., Wichmann, H., Agudo, A., . . . Boffetta, P. (2004). Secondhand smoke exposure in adulthood and risk of lung cancer among never smokers: A pooled analysis of two large studies.

Cita Chicago (17th ed.)

Brennan, P., et al. Secondhand Smoke Exposure in Adulthood and Risk of Lung Cancer Among Never Smokers: A Pooled Analysis of Two Large Studies. 2004.

Cita MLA (9th ed.)

Brennan, P., et al. Secondhand Smoke Exposure in Adulthood and Risk of Lung Cancer Among Never Smokers: A Pooled Analysis of Two Large Studies. 2004.