APA (7th ed.) Citation

Hughes, L. (1999). Poems (2. print.). Knopf.

Chicago Style (17th ed.) Citation

Hughes, Langston. Poems. 2. print. New York [u.a.]: Knopf, 1999.

MLA (9th ed.) Citation

Hughes, Langston. Poems. 2. print. Knopf, 1999.