WILLINGHAM, J. R. A Handbook for Student Writers. -.
Lua i Stíl Chicago (17ú heag.)WILLINGHAM, John R. A Handbook for Student Writers. -.
Lua MLA (8ú heag.)WILLINGHAM, John R. A Handbook for Student Writers. -.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.