Kay, C. R., & Hannaford, P. C. (1988). Breast cancer and the pill--a further report from the Royal College of General Practitioners' oral contraception study. Nature Publishing Group.
استشهاد بنمط شيكاغوKay, C. R., و P. C. Hannaford. Breast Cancer and the Pill--a Further Report From the Royal College of General Practitioners' Oral Contraception Study. Nature Publishing Group, 1988.
MLA استشهادKay, C. R., و P. C. Hannaford. Breast Cancer and the Pill--a Further Report From the Royal College of General Practitioners' Oral Contraception Study. Nature Publishing Group, 1988.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.