WHO. (1996). Obstructed labour module. education material for teachers of midwifery. WHO.
Chicagoスタイル(17版)引用形式WHO. Obstructed Labour Module. Education Material for Teachers of Midwifery. WHO, 1996.
MLA(9版)引用形式WHO. Obstructed Labour Module. Education Material for Teachers of Midwifery. WHO, 1996.
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