APA

Mooney M. E., Li Z., Murphy S. E., Pentel P. R., Le C. & Hatsukami D. K. (20081021). Stability of the nicotine metabolite ratio in ad libitum and reducing smokers. : Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology.

Chicago

Mooney Marc E, Li Zhong-Ze, Murphy Sharon E, Pentel Paul R, Le Chap and Hatsukami Dorothy K. 20081021. Stability of the nicotine metabolite ratio in ad libitum and reducing smokers. : Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology.

Harvard

Mooney M. E., Li Z., Murphy S. E., Pentel P. R., Le C. and Hatsukami D. K. (20081021). Stability of the nicotine metabolite ratio in ad libitum and reducing smokers. : Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology.

MLA

Mooney Marc E, Li Zhong-Ze, Murphy Sharon E, Pentel Paul R, Le Chap and Hatsukami Dorothy K. Stability of the nicotine metabolite ratio in ad libitum and reducing smokers. : Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology. 20081021.