Dyfyniad APA
Barnett, P., & ET AL. (2014). Cost-effectiveness of extended cessation treatment for older smokers.
Dyfyniad Arddull Chicago
Barnett, P.G, and ET AL. Cost-effectiveness of Extended Cessation Treatment for Older Smokers. 2014.
Dyfyniad MLA
Barnett, P.G, and ET AL. Cost-effectiveness of Extended Cessation Treatment for Older Smokers. 2014.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.