Cita APA (7th ed.)
(2003). BMC Pregnancy and Childbirth. BMC.
Cita Chicago (17th ed.)
BMC Pregnancy and Childbirth. BMC, 2003.
Cita MLA (9th ed.)
BMC Pregnancy and Childbirth. BMC, 2003.
Atenció: Aquestes cites poden no estar 100% correctes.