University of Illinois (Urbana-Champaign campus)\nUniversity of Illinois at Urbana-Champaign. (1957). Illinois Journal of Mathematics. University of Illinois Press.
Lua i Stíl Chicago (17ú heag.)University of Illinois (Urbana-Champaign campus)\nUniversity of Illinois at Urbana-Champaign. Illinois Journal of Mathematics. Urbana, Ill: University of Illinois Press, 1957.
Lua MLA (8ú heag.)University of Illinois (Urbana-Champaign campus)\nUniversity of Illinois at Urbana-Champaign. Illinois Journal of Mathematics. University of Illinois Press, 1957.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.