Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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