Dyfyniad APA

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.

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.