Jeffreys, H. (1972). Methods of mathematical physics (3rd.). Cambridge University Press.
Lua i Stíl Chicago (17ú heag.)Jeffreys, Harold. Methods of Mathematical Physics. 3rd. New York: Cambridge University Press, 1972.
Lua MLA (9ú heag.)Jeffreys, Harold. Methods of Mathematical Physics. 3rd. Cambridge University Press, 1972.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.