Cita APA (7a ed.)
Speroff, L., & Darney, P. D. (2011). A clinical guide for contraception (Fifth edition.). Wolters Kluwer Health/Lippincott Williams & Wilkins.
Cita Chicago Style (17a ed.)
Speroff, Leon, y Philip D. Darney. A Clinical Guide for Contraception. Fifth edition. Philadelphia: Wolters Kluwer Health/Lippincott Williams & Wilkins, 2011.
Cita MLA (9a ed.)
Speroff, Leon, y Philip D. Darney. A Clinical Guide for Contraception. Fifth edition. Wolters Kluwer Health/Lippincott Williams & Wilkins, 2011.
Precaución: Estas citas no son 100% exactas.