APA (7th ed.) Citation
Barnett, P., & ET AL. (2014). Cost-effectiveness of extended cessation treatment for older smokers.
Chicago Style (17th ed.) Citation
Barnett, P.G, and ET AL. Cost-effectiveness of Extended Cessation Treatment for Older Smokers. 2014.
MLA (9th ed.) Citation
Barnett, P.G, and ET AL. Cost-effectiveness of Extended Cessation Treatment for Older Smokers. 2014.
Warning: These citations may not always be 100% accurate.