Lua APA (7ú heag.)
Heffernan, M. (2011). At the bureau of divine music: Poems. Wayne State University Press.
Lua i Stíl Chicago (17ú heag.)
Heffernan, Michael. At the Bureau of Divine Music: Poems. Detroit: Wayne State University Press, 2011.
Lua MLA (9ú heag.)
Heffernan, Michael. At the Bureau of Divine Music: Poems. Wayne State University Press, 2011.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.