Citazione Stile APA (7a Edizione)

Ovid Technologies, Inc, Pfeifer, S. M., & García Roig, F. (2009). NMS obstetricia y ginecología (6. ed.). Wolters Kluwer Health/Lippincott Williams & Wilkins.

Citazione stile Chigago Style (17a edizione)

Ovid Technologies, Inc, Samantha M. Pfeifer, e Félix García Roig. NMS Obstetricia Y Ginecología. 6. ed. Barcelona: Wolters Kluwer Health/Lippincott Williams & Wilkins, 2009.

Citatione MLA (9a ed.)

Ovid Technologies, Inc, et al. NMS Obstetricia Y Ginecología. 6. ed. Wolters Kluwer Health/Lippincott Williams & Wilkins, 2009.