Birkett, C. (1979). Heredity, development and evolution. Macmillan.
Chicago Style aipamenaBirkett, Christine. Heredity, Development and Evolution. London: Macmillan, 1979.
MLA aipamenaBirkett, Christine. Heredity, Development and Evolution. Macmillan, 1979.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.