Cita APA (7th ed.)

Cunningham, F. G., Leveno, K. J., Bloom, S. L., Spong, C. Y., Dashe, J. S., Hoffman, B. L., . . . Sheffield, J. S. (2014). Williams obstetrics (24th ed.). McGraw-Hill Education.

Cita Chicago (17th ed.)

Cunningham, F. Gary, Kenneth J. Leveno, Steven L. Bloom, Catherine Y. Spong, Jodi S. Dashe, Barbara L. Hoffman, Brian M. Casey, i Jeanne S. Sheffield. Williams Obstetrics. 24th ed. New York: McGraw-Hill Education, 2014.

Cita MLA (9th ed.)

Cunningham, F. Gary, et al. Williams Obstetrics. 24th ed. McGraw-Hill Education, 2014.