APA Style

Celan, P., Hamburger, M. (2002). Poems of Paul Celan, Revised and expanded . New York (N. Y., U. S. A.): Persea.

MLA Style

Celan, Paul., Hamburger, Michael. "Poems of Paul Celan, Revised and expanded". New York (N. Y., U. S. A.): Persea, 2002. Text.