Cooper, A. M. (1988). Doubt and identity in romantic poetry. Yale University Press.
Lua i Stíl Chicago (17ú heag.)Cooper, Andrew M. Doubt and Identity in Romantic Poetry. New Haven: Yale University Press, 1988.
Lua MLA (9ú heag.)Cooper, Andrew M. Doubt and Identity in Romantic Poetry. Yale University Press, 1988.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.