APA-referens

Yerger, V. B., Cataldo, J. K., & Malone, R. E. (2013). Older smokers could be the strongest supporters for U.S. government regulation of tobacco: A focus group study. BioMed Central.

Chicago-stil citat

Yerger, Valerie B., Janine K. Cataldo, och Ruth E. Malone. Older Smokers Could Be the Strongest Supporters for U.S. Government Regulation of Tobacco: A Focus Group Study. BioMed Central, 2013.

MLA-referens

Yerger, Valerie B., Janine K. Cataldo, och Ruth E. Malone. Older Smokers Could Be the Strongest Supporters for U.S. Government Regulation of Tobacco: A Focus Group Study. BioMed Central, 2013.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.