APA (7th ed.) Citation

Bridgwater, P. (1963). Twentieth-century german verse. Penguin Books.

Chicago Style (17th ed.) Citation

Bridgwater, Patrick. Twentieth-century German Verse. Londres: Penguin Books, 1963.

MLA (9th ed.) Citation

Bridgwater, Patrick. Twentieth-century German Verse. Penguin Books, 1963.