1. and 1958 Callander's Surgical Anatomy, 4th ed., W. B. Saunders, Philadelphia.
2. Variations of the Lumbrical Muscles of the Hand
3. and 1948 The applied anatomy of the lumbrical and interosseous muscles of the hand. Guy's Hosp. Reports, 97: 185-195.
4. Buchanan's Manual of Anatomy, 8th ed. 1950 ed. Williams and Wilkins, Baltimore.