Williams Obstetrics, 25th Edition
Cunningham FG, Leveno KJ, Bloom SL, Dashe JS, Hoffman BL, Casey BM, Spong CY. (2018). New York, McGraw-Hill Education

Williams Obstetrics, 24th Edition
Cunningham FG, Leveno KJ, Bloom SL, Spong CY, Dashe JS, Hoffman BL, Casey BM, Sheffield JS. (2014). New York, McGraw Hill Education/Medical

Williams Obstetrics, 23rd Edition
Cunningham FG, Leveno KJ, Bloom SL, Hauth JC, Spong CY, Rouse DJ. (2009). New York, McGraw-Hill Companies, Inc.

Williams Manual of Obstetrics – Pregnancy Complications, 2nd Edition
Leveno KJ, Cunningham FG, Alexander JM, Bloom SL, Casey BM, Dashe JS, Roberts S, Sheffield JS. (2007). New York, McGraw-Hill

Williams Obstetrics, 22nd Edition
Cunningham FG, Leveno KJ, Bloom SL, Gilstrap LC, Hauth JC, Wenstrom KD. (2005) New York, McGraw-Hill Companies, Inc.

Williams Manual of Obstetrics
Leveno KJ, Cunningham FG, Gant NF, Alexander JM, Bloom SL, Casey BM, Dashe JS, Sheffield JS, Yost NP. (2003) New York, McGraw-Hill Companies, Inc.