Roy, P. (1984). Systematic bibliography. Printwell.
Lua i Stíl Chicago (17ú heag.)Roy, Paul. Systematic Bibliography. Jaipur: Printwell, 1984.
Lua MLA (9ú heag.)Roy, Paul. Systematic Bibliography. Printwell, 1984.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.