Callan, E. Auden's new year letter: a new style of architecture: Edward Callan. Auden : a collection of critical essays.(1964).
Lua i Stíl Chicago (17ú heag.)Callan, Edward. "Auden's New Year Letter: A New Style of Architecture: Edward Callan." Auden : A Collection of Critical Essays.(1964) .
Lua MLA (8ú heag.)Callan, Edward. "Auden's New Year Letter: A New Style of Architecture: Edward Callan." Auden : A Collection of Critical Essays.(1964), .
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.