NAPA, P. A. (1992). How To Answer English Questions. Kanisius.
Lua i Stíl Chicago (17ú heag.)NAPA, Pieter A. How To Answer English Questions. Kanisius, 1992.
Lua MLA (8ú heag.)NAPA, Pieter A. How To Answer English Questions. Kanisius, 1992.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.