Bonner, J. T. (1974). On development: The biology of form. Harvard University Press.
Lua i Stíl Chicago (17ú heag.)Bonner, John Tyler. On Development: The Biology of Form. Cambridge, Mass: Harvard University Press, 1974.
Lua MLA (9ú heag.)Bonner, John Tyler. On Development: The Biology of Form. Harvard University Press, 1974.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.