APA (7th ed.) Citation

ebrary, Inc, Zink, C., & Pschyrembel, W. (1988). Dictionary of obstetrics and gynecology. W. De Gruyter.

Chicago Style (17th ed.) Citation

ebrary, Inc, Christoph Zink, and Willibald Pschyrembel. Dictionary of Obstetrics and Gynecology. Berlin ; New York: W. De Gruyter, 1988.

MLA (9th ed.) Citation

ebrary, Inc, et al. Dictionary of Obstetrics and Gynecology. W. De Gruyter, 1988.