@inbook{1106376627, author={Jessica Dy and Darine El-Chaar}, editor={Posner, Glenn D. and Dy, Jessica and Black, Amanda and Jones, Griffith D.}, title={Abnormal Cephalic Presentations}, booktitle={Oxorn-Foote Human Labor & Birth, 6e}, publisher={McGraw-Hill Medical}, address={New York, NY}, year={2015}, url={obgyn.mhmedical.com/content.aspx?aid=1106376627} }