Symonds, E. M., & Symonds, I. M. (2004). Essential obstetrics and gynaecology (4th ed.). Churchill Livingstone.
芝加哥风格引文Symonds, E. Malcolm, 与 Ian M. Symonds. Essential Obstetrics and Gynaecology. 4th ed. Edinburgh, UK: Churchill Livingstone, 2004.
MLA引文Symonds, E. Malcolm, 与 Ian M. Symonds. Essential Obstetrics and Gynaecology. 4th ed. Churchill Livingstone, 2004.
警告：这些引文格式不一定是100％准确.