(1973). Vol. 44, № 6, Pat. 1. 1973.
Lua i Stíl Chicago (17ú heag.)Vol. 44, № 6, Pat. 1. 1973, 1973.
Lua MLA (9ú heag.)Vol. 44, № 6, Pat. 1. 1973, 1973.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.
Lua APA (7ú heag.)