American College of Obstetricians and Gynecologists. (2003). Obstetrics and gynecology. Elsevier Science.
Cita Chicago (17th ed.)American College of Obstetricians and Gynecologists. Obstetrics and Gynecology. [S.l.]: Elsevier Science, 2003.
Cita MLA (8th ed.)American College of Obstetricians and Gynecologists. Obstetrics and Gynecology. Elsevier Science, 2003.
Atenció: Aquestes cites poden no estar 100% correctes.