APA (7th ed.) Citation

Watson, R., & Gray, M. (1978). The Penguin book of the bicycle. Penguin Books.

Chicago Style (17th ed.) Citation

Watson, Roderick, and Martin Gray. The Penguin Book of the Bicycle. Harmondsworth, [England]: Penguin Books, 1978.

MLA (8th ed.) Citation

Watson, Roderick, and Martin Gray. The Penguin Book of the Bicycle. Penguin Books, 1978.