Citazione Stile APA (7a Edizione)
Speroff, L., & Darney, P. D. (2011). A clinical guide for contraception (Fifth edition.). Wolters Kluwer Health/Lippincott Williams & Wilkins.
Citazione stile Chigago Style (17a edizione)
Speroff, Leon, e Philip D. Darney. A Clinical Guide for Contraception. Fifth edition. Philadelphia: Wolters Kluwer Health/Lippincott Williams & Wilkins, 2011.
Citatione MLA (9a ed.)
Speroff, Leon, e Philip D. Darney. A Clinical Guide for Contraception. Fifth edition. Wolters Kluwer Health/Lippincott Williams & Wilkins, 2011.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.