APA (7th ed.) Citation

Piper, J., & Betjeman, J. (1944). John Piper. Penguin Books.

Chicago Style (17th ed.) Citation

Piper, John, and John Betjeman. John Piper. Harmondsworth: Penguin Books, 1944.

MLA (8th ed.) Citation

Piper, John, and John Betjeman. John Piper. Penguin Books, 1944.

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