APA (7th ed.) Citation

Auden, W. H. (1958). Selected by the author. Penguin Books.

Chicago Style (17th ed.) Citation

Auden, W. H. Selected by the Author. London ; Middlesex,: Penguin Books, 1958.

MLA (8th ed.) Citation

Auden, W. H. Selected by the Author. Penguin Books, 1958.