Young, R. L., Crooks, C., Elder, J. P., Kenney, E., Bal, D. G., & Johnson, M. (1991). Smoking cessation attitudes, practices, and policies among California primary care physicians.
Παραπομπή Chicago StyleYoung, R. L., C. Crooks, J. P. Elder, E. Kenney, D. G. Bal, και M. Johnson. Smoking Cessation Attitudes, Practices, and Policies Among California Primary Care Physicians. 1991.
Παραπομπή MLAYoung, R. L., et al. Smoking Cessation Attitudes, Practices, and Policies Among California Primary Care Physicians. 1991.
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