APA

Zhang Z. F., Morgenstern H., Spitz M. R., Tashkin D. P., Yu G. P., Marshall J. R., Hsu T. C. & Schantz S. P. (20000106). Marijuana use and increased risk of squamous cell carcinoma of the head and neck. : Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology.

Chicago

Zhang Z F, Morgenstern H, Spitz M R, Tashkin D P, Yu G P, Marshall J R, Hsu T C and Schantz S P. 20000106. Marijuana use and increased risk of squamous cell carcinoma of the head and neck. : Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology.

Harvard

Zhang Z. F., Morgenstern H., Spitz M. R., Tashkin D. P., Yu G. P., Marshall J. R., Hsu T. C. and Schantz S. P. (20000106). Marijuana use and increased risk of squamous cell carcinoma of the head and neck. : Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology.

MLA

Zhang Z F, Morgenstern H, Spitz M R, Tashkin D P, Yu G P, Marshall J R, Hsu T C and Schantz S P. Marijuana use and increased risk of squamous cell carcinoma of the head and neck. : Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology. 20000106.