(1991). Essential Elements Of Obstetric Care Al First Referral Level. WHO.
Cita Chicago (17th ed.)Essential Elements Of Obstetric Care Al First Referral Level. Ginebra: WHO, 1991.
Cita MLA (9th ed.)Essential Elements Of Obstetric Care Al First Referral Level. WHO, 1991.
Atenció: Aquestes cites poden no estar 100% correctes.