ebrary, Inc, Byrom, S., Edwards, G., & Bick, D. (2009). Essential midwifery practice. Wiley-Blackwell.
芝加哥风格引文ebrary, Inc, Sheena Byrom, Grace Edwards, 与 Debra Bick. Essential Midwifery Practice. Chichester ; Ames, Iowa: Wiley-Blackwell, 2009.
MLA引文ebrary, Inc, et al. Essential Midwifery Practice. Wiley-Blackwell, 2009.
警告：这些引文格式不一定是100％准确.