Citazione Stile APA (7a Edizione)

Harper, M. S. (2009). Use trouble: Poems. University of Illinois Press.

Citazione stile Chigago Style (17a edizione)

Harper, Michael S. Use Trouble: Poems. Urbana: University of Illinois Press, 2009.

Citatione MLA (9a ed.)

Harper, Michael S. Use Trouble: Poems. University of Illinois Press, 2009.