(1991). Essential Elements Of Obstetric Care Al First Referral Level. WHO.
Chicagoスタイル(17版)引用形式Essential Elements Of Obstetric Care Al First Referral Level. Ginebra: WHO, 1991.
MLA(9版)引用形式Essential Elements Of Obstetric Care Al First Referral Level. WHO, 1991.
警告: この引用は必ずしも正確ではありません.