APA (7th ed.) Citation

Oppen, G. (1975). The collected poems of George Oppen. New Direction Book.

Chicago Style (17th ed.) Citation

Oppen, George. The Collected Poems of George Oppen. New York: New Direction Book, 1975.

MLA (9th ed.) Citation

Oppen, George. The Collected Poems of George Oppen. New Direction Book, 1975.