Cannon, E. S. Annuity markets. Oxford University Press.
Lua i Stíl Chicago (17ú heag.)Cannon, Edmund Stuart. Annuity Markets. Oxford University Press.
Lua MLA (8ú heag.)Cannon, Edmund Stuart. Annuity Markets. Oxford University Press.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.