APA (7th ed.) Citation

Black, D. M., Redgrove, P., & Thomas, D. M. (1968). Penguin modern poets. Penguin.

Chicago Style (17th ed.) Citation

Black, D. M., Peter Redgrove, and D. M. Thomas. Penguin Modern Poets. Harmondsworth: Penguin, 1968.

MLA (9th ed.) Citation

Black, D. M., et al. Penguin Modern Poets. Penguin, 1968.

Warning: These citations may not always be 100% accurate.