APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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

Kontuz: berrikusi erreferentzia hauek erabili aurretik.