Mathews, W. W. 1. (1976). Atlas of descriptive embryology (2nd ed.). Macmillan.
Lua i Stíl Chicago (17ú heag.)Mathews, Willis W. 1917. Atlas of Descriptive Embryology. 2nd ed. New York: Macmillan, 1976.
Lua MLA (9ú heag.)Mathews, Willis W. 1917. Atlas of Descriptive Embryology. 2nd ed. Macmillan, 1976.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.