Cita APA

Kmietowicz, Z. (2001). Tobacco company claims that smokers help the economy. BMJ.

Chicago Style Citation

Kmietowicz, Zosia. Tobacco Company Claims That Smokers Help the Economy. BMJ, 2001.

Cita MLA

Kmietowicz, Zosia. Tobacco Company Claims That Smokers Help the Economy. BMJ, 2001.

Atenció: Aquestes cites poden no estar 100% correctes.