PREGILL PHILIP. (1993). LANDSAPES IN HISTORY. VANNOSTRAND REHINLAND.
Lua i Stíl Chicago (17ú heag.)PREGILL PHILIP. LANDSAPES IN HISTORY. NEW YORK: VANNOSTRAND REHINLAND, 1993.
Lua MLA (9ú heag.)PREGILL PHILIP. LANDSAPES IN HISTORY. VANNOSTRAND REHINLAND, 1993.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.