World Health Organization. Essential elements of obstetric care at first referral level.
Čikaški stil citiranja (17. izdanje)World Health Organization. Essential Elements of Obstetric Care at First Referral Level.
MLA način citiranja (8. izdanje)World Health Organization. Essential Elements of Obstetric Care at First Referral Level.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.