ebrary, Inc, Warren, R., & Arulkumaran, S. (2009). Best practice in labour and delivery. Cambridge University Press.
芝加哥风格引文ebrary, Inc, Richard Warren, 与 Sabaratnam Arulkumaran. Best Practice in Labour and Delivery. Cambridge ; New York: Cambridge University Press, 2009.
MLA引文ebrary, Inc, et al. Best Practice in Labour and Delivery. Cambridge University Press, 2009.
警告：这些引文格式不一定是100％准确.