Fillmer, H. T. (1977). PATTERNS OF LANGUAGE LEVEL C. D.E.F. American Books Company.
Lua i Stíl Chicago (17ú heag.)Fillmer, H. Thompson. PATTERNS OF LANGUAGE LEVEL C. D.E.F. American Books Company, 1977.
Lua MLA (8ú heag.)Fillmer, H. Thompson. PATTERNS OF LANGUAGE LEVEL C. D.E.F. American Books Company, 1977.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.