Shaver, d. c. (1993). Clinical manual of obstetrics. Mc Graw-Hill.
芝加哥风格引文Shaver, david c. Clinical Manual of Obstetrics. Mc Graw-Hill, 1993.
MLA引文Shaver, david c. Clinical Manual of Obstetrics. Mc Graw-Hill, 1993.
警告：这些引文格式不一定是100％准确.
APA引文