APA引文

Leveno, K. J. (2003). Williams manual of obstetrics (21st ed.). McGraw-Hill.

Chicago Style (17th ed.) Citation

Leveno, Kenneth J. Williams Manual of Obstetrics. 21st ed. Boston: McGraw-Hill, 2003.

MLA引文

Leveno, Kenneth J. Williams Manual of Obstetrics. 21st ed. McGraw-Hill, 2003.

警告：這些引文格式不一定是100％准確.