APA-referens (7:e uppl.)
Tobias, R. (2006). The discourse of nature in the poetry of Paul Celan: The unnatural world. Johns Hopkins University Press.
Chicago-referens (17:e uppl.)
Tobias, Rochelle. The Discourse of Nature in the Poetry of Paul Celan: The Unnatural World. Baltimore: Johns Hopkins University Press, 2006.
MLA-referens (9:e uppl.)
Tobias, Rochelle. The Discourse of Nature in the Poetry of Paul Celan: The Unnatural World. Johns Hopkins University Press, 2006.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.