1. (1937) “Men of Mathematics.” New York: Simon and Schuster, p 477.
2. Classification of polydactyly of the hands and fee
3. (1969) The early stages of human limb development. In (ed): “Limb Development and Deformity: Problems of Evaluation and Rehabilitation.” Springfield, Ill: Charles C. Thomas, pp 22-56.
4. CHONDROECTODERMAL DYSPLASIA
5. Birth Defects;Lacktis,1978