Waddington, C. H. 1905-1975. Principles of development and differentiation [by] C. H. Waddington. - New York: Macmillan, 1966. - x, 115 p.: ill.; 24 cm. - Current concepts in biology series . Bibliography: p. 110-111. LCCN: 66015030 Subjects--Topical Terms: Embryology.Developmental genetics.Cytology. LC Class. No.: QL955 / WAD Dewey Class. No.: 574.3