APA aipamena

Vessey, M. P., McPherson, K., & Doll, R. (1981). Breast cancer and oral contraceptives: Findings in Oxford-Family Planning Association contraceptive study.

Chicago Style aipamena

Vessey, M P., K. McPherson, and R. Doll. Breast Cancer and Oral Contraceptives: Findings in Oxford-Family Planning Association Contraceptive Study. 1981.

MLA aipamena

Vessey, M P., K. McPherson, and R. Doll. Breast Cancer and Oral Contraceptives: Findings in Oxford-Family Planning Association Contraceptive Study. 1981.