British Library. Dept. of Manuscripts. (1981). Papers of the prime ministers of Great Britain. Harvester Microform.
Lua i Stíl Chicago (17ú heag.)British Library. Dept. of Manuscripts. Papers of the Prime Ministers of Great Britain. Brighton, Sussex: Harvester Microform, 1981.
Lua MLA (8ú heag.)British Library. Dept. of Manuscripts. Papers of the Prime Ministers of Great Britain. Harvester Microform, 1981.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.