Cunningham, f. g. (2010). Williams Obstetrics. McGraw-Hill Book Company.
Cita Chicago (17th ed.)Cunningham, f. gary. Williams Obstetrics. McGraw-Hill Book Company, 2010.
Cita MLA (9th ed.)Cunningham, f. gary. Williams Obstetrics. McGraw-Hill Book Company, 2010.
Atenció: Aquestes cites poden no estar 100% correctes.