Cita APA

Berg, C. J., Wen, H., Cummings, J. R., Ahluwalia, J. S., & Druss, B. G. (2013). Depression and Substance Abuse and Dependency in Relation to Current Smoking Status and Frequency of Smoking among Nondaily and Daily Smokers.

Chicago Style Citation

Berg, Carla J., Hefei Wen, Janet R. Cummings, Jasjit S. Ahluwalia, i Benjamin G. Druss. Depression and Substance Abuse and Dependency in Relation to Current Smoking Status and Frequency of Smoking Among Nondaily and Daily Smokers. 2013.

Cita MLA

Berg, Carla J., et al. Depression and Substance Abuse and Dependency in Relation to Current Smoking Status and Frequency of Smoking Among Nondaily and Daily Smokers. 2013.