American College of Obstetricians and Gynecologist, Beckmann, C. R., & Magri Ruiz, B. (2010). Obstetricia y ginecología (6a. edición.). Wolters Kluwer Health.
Citazione stile Chigago Style (17a edizione)American College of Obstetricians and Gynecologist, Charles R. Beckmann, e Beatriz Magri Ruiz. Obstetricia Y Ginecología. 6a. edición. Barcelona: Wolters Kluwer Health, 2010.
Citatione MLA (9a ed.)American College of Obstetricians and Gynecologist, et al. Obstetricia Y Ginecología. 6a. edición. Wolters Kluwer Health, 2010.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.