APA ציטוט

Vessey, M. P., McPherson, K., Yeates, D., & Doll, R. (1982). Oral contraceptive use and abortion before first term pregnancy in relation to breast cancer risk. Nature Publishing Group.

Citação norma Chicago

Vessey, M. P., K. McPherson, D. Yeates, and R. Doll. Oral Contraceptive Use and Abortion Before First Term Pregnancy in Relation to Breast Cancer Risk. Nature Publishing Group, 1982.

ציטוט MLA

Vessey, M. P., K. McPherson, D. Yeates, and R. Doll. Oral Contraceptive Use and Abortion Before First Term Pregnancy in Relation to Breast Cancer Risk. Nature Publishing Group, 1982.