Cita APA (7th ed.)
Callahan, T. L., & Caughey, A. B. (2013). Blueprints obstetrics & gynecology (6th ed.). Lippincott Williams & Wilkins.
Cita Chicago (17th ed.)
Callahan, Tamara L., i Aaron B. Caughey. Blueprints Obstetrics & Gynecology. 6th ed. Baltimore, MD: Lippincott Williams & Wilkins, 2013.
Cita MLA (9th ed.)
Callahan, Tamara L., i Aaron B. Caughey. Blueprints Obstetrics & Gynecology. 6th ed. Lippincott Williams & Wilkins, 2013.
Atenció: Aquestes cites poden no estar 100% correctes.