APA citiranje

Friedmann, P. D., Jiang, L., & Richter, K. P. (2007). Cigarette Smoking Cessation Services in Outpatient Substance Abuse Treatment Programs in the United States.

Citação norma Chicago

Friedmann, Peter D., Lan Jiang, and Kimber P. Richter. Cigarette Smoking Cessation Services in Outpatient Substance Abuse Treatment Programs in the United States. 2007.

MLA citiranje

Friedmann, Peter D., Lan Jiang, and Kimber P. Richter. Cigarette Smoking Cessation Services in Outpatient Substance Abuse Treatment Programs in the United States. 2007.