Travis, R., Crowe, F., Allen, N., Appleby, P., Roddam, A., Tjønneland, A., . . . Argüelles, M. (2009). Serum vitamin d and risk of prostate cancer in a case-control analysis nested within the european prospective investigation into cancer and nutrition (EPIC).
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Travis, R., et al. Serum Vitamin D and Risk of Prostate Cancer in a Case-control Analysis Nested Within the European Prospective Investigation into Cancer and Nutrition (EPIC). 2009.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Travis, R., et al. Serum Vitamin D and Risk of Prostate Cancer in a Case-control Analysis Nested Within the European Prospective Investigation into Cancer and Nutrition (EPIC). 2009.
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