Langman, Jan. 
Langman's medical embryology.   Medical embryology.    - 8th ed. /  T.W. Sadler, original illustrations by Jill Leland / computer illustrations by Susan L. Sadler-Redmond / scanning electron micrographs by Kathleen K. Sulik and Jennifer Burgoon / ultrasound images by Nancy Chescheir.   - Philadelphia ;  London :  Lippincott Williams & Wilkins,  c2000.   - x, 504 p. :  ill. (some col.) ;  23 cm.