APA Citatie

Smith, D. R. (2008). The historical decline of tobacco smoking among United States physicians: 1949–1984. BioMed Central.

Chicago Style citaat

Smith, Derek R. The Historical Decline of Tobacco Smoking Among United States Physicians: 1949–1984. BioMed Central, 2008.

MLA citatie

Smith, Derek R. The Historical Decline of Tobacco Smoking Among United States Physicians: 1949–1984. BioMed Central, 2008.

Let op: Deze citaties zijn niet altijd 100% accuraat.