Lua APA (7ú heag.)
Harper, M. S. (2009). Use trouble: Poems. University of Illinois Press.
Lua i Stíl Chicago (17ú heag.)
Harper, Michael S. Use Trouble: Poems. Urbana: University of Illinois Press, 2009.
Lua MLA (9ú heag.)
Harper, Michael S. Use Trouble: Poems. University of Illinois Press, 2009.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.