National Gallery of Art (U.S.). Report and studies in the history of art. National Gallery of Art : United States Government Printing Office.
Lua i Stíl Chicago (17ú heag.)National Gallery of Art (U.S.). Report and Studies in the History of Art. Washington: National Gallery of Art : United States Government Printing Office.
Lua MLA (8ú heag.)National Gallery of Art (U.S.). Report and Studies in the History of Art. National Gallery of Art : United States Government Printing Office.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.