Dyfyniad APA

Richiardi, L., Forastiere, F., Boffetta, P., Simonato, L., & Merletti, F. (2005). Effect of different approaches to treatment of smoking as a potential confounder in a case–control study on occupational exposures. BMJ Group.

Dyfyniad Arddull Chicago

Richiardi, L., F. Forastiere, P. Boffetta, L. Simonato, and F. Merletti. Effect of Different Approaches to Treatment of Smoking As a Potential Confounder in a Case–control Study On Occupational Exposures. BMJ Group, 2005.

Dyfyniad MLA

Richiardi, L., et al. Effect of Different Approaches to Treatment of Smoking As a Potential Confounder in a Case–control Study On Occupational Exposures. BMJ Group, 2005.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.