APA (7e ed.) Bronvermelding
Speroff, L., & Darney, P. D. (2011). A clinical guide for contraception (Fifth edition.). Wolters Kluwer Health/Lippincott Williams & Wilkins.
Chicago (17e ed.) Bronvermelding
Speroff, Leon, en Philip D. Darney. A Clinical Guide for Contraception. Fifth edition. Philadelphia: Wolters Kluwer Health/Lippincott Williams & Wilkins, 2011.
MLA (9e ed.) Bronvermelding
Speroff, Leon, en Philip D. Darney. A Clinical Guide for Contraception. Fifth edition. Wolters Kluwer Health/Lippincott Williams & Wilkins, 2011.
Let op: Deze citaties zijn niet altijd 100% accuraat.