ABBOTT, P. NATURAL DISASTERS. McGraw Hill.
Lua i Stíl Chicago (17ú heag.)ABBOTT, Patrick. NATURAL DISASTERS. McGraw Hill.
Lua MLA (8ú heag.)ABBOTT, Patrick. NATURAL DISASTERS. McGraw Hill.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.