Bodleian Library & Ballard, G. (1982). The Ballard Collection. Harvester Press Microform Publications.
Lua i Stíl Chicago (17ú heag.)Bodleian Library agus George Ballard. The Ballard Collection. Brighton, Sussex, England: Harvester Press Microform Publications, 1982.
Lua MLA (8ú heag.)Bodleian Library agus George Ballard. The Ballard Collection. Harvester Press Microform Publications, 1982.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.