Cite
Social class and smoking at age 15: the effect of different definitions of smoking.
MLA
Sweeting, Helen, and Patrick West. “Social Class and Smoking at Age 15: The Effect of Different Definitions of Smoking.” Addiction, vol. 96, no. 9, Sept. 2001, pp. 1357–59. EBSCOhost, https://doi.org/10.1046/j.1360-0443.2001.969135715.x.
APA
Sweeting, H., & West, P. (2001). Social class and smoking at age 15: the effect of different definitions of smoking. Addiction, 96(9), 1357–1359. https://doi.org/10.1046/j.1360-0443.2001.969135715.x
Chicago
Sweeting, Helen, and Patrick West. 2001. “Social Class and Smoking at Age 15: The Effect of Different Definitions of Smoking.” Addiction 96 (9): 1357–59. doi:10.1046/j.1360-0443.2001.969135715.x.