APA (7e ed.) Bronvermelding

Cunningham, G., Bloom, S. L., Hauth, J. C., Leveno, K. J., Rouse, D. J., & Spong, C. Y. (2010). Williams Obstetrics (23.). McGraw-Hill.

Chicago (17e ed.) Bronvermelding

Cunningham, Gary, Steven L. Bloom, John C. Hauth, Kenneth J. Leveno, Dwight J. Rouse, en Catherine Y. Spong. Williams Obstetrics. 23. McGraw-Hill, 2010.

MLA (8e ed.) Bronvermelding

Cunningham, Gary, et al. Williams Obstetrics. 23. McGraw-Hill, 2010.