Loudon, I. (1986). Obstetric care, social class, and maternal mortality.
Citação norma ChicagoLoudon, I. Obstetric Care, Social Class, and Maternal Mortality. 1986.
MLA引文Loudon, I. Obstetric Care, Social Class, and Maternal Mortality. 1986.
警告:這些引文格式不一定是100%准確.