Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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