Ferrar, W. L. (1958). Integral calculus. Clarendon Press.
Lua i Stíl Chicago (17ú heag.)Ferrar, W. L. Integral Calculus. Oxford: Clarendon Press, 1958.
Lua MLA (8ú heag.)Ferrar, W. L. Integral Calculus. Clarendon Press, 1958.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.