Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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