APA (7th ed.) Citation

Shaikh, W., Nugawela, M. D., & Szatkowski, L. (2015). What are the main sources of smoking cessation support used by adolescent smokers in England?: A cross-sectional study. BioMed Central.

Chicago Style (17th ed.) Citation

Shaikh, Wasif, Manjula D. Nugawela, and Lisa Szatkowski. What Are the Main Sources of Smoking Cessation Support Used by Adolescent Smokers in England?: A Cross-sectional Study. BioMed Central, 2015.

MLA (9th ed.) Citation

Shaikh, Wasif, et al. What Are the Main Sources of Smoking Cessation Support Used by Adolescent Smokers in England?: A Cross-sectional Study. BioMed Central, 2015.