World Health Organization. (2001). Safe motherhood needs assessment. WHO.
Chicagoスタイル(17版)引用形式World Health Organization. Safe Motherhood Needs Assessment. Geneva: WHO, 2001.
MLA(8版)引用形式World Health Organization. Safe Motherhood Needs Assessment. WHO, 2001.
警告: この引用は必ずしも正確ではありません.