Frith, l. (1996). Ethics and midwifery issues in contemporary. Butterworth-heinemann.
芝加哥风格引文Frith, lucy. Ethics and Midwifery Issues in Contemporary. Butterworth-heinemann, 1996.
MLA引文Frith, lucy. Ethics and Midwifery Issues in Contemporary. Butterworth-heinemann, 1996.
警告：这些引文格式不一定是100％准确.