APA (7th ed.) Citation

Wells, D. (1992). The Penguin book of curious and interesting puzzles. Penguin Books.

Chicago Style (17th ed.) Citation

Wells, David. The Penguin Book of Curious and Interesting Puzzles. London u.a: Penguin Books, 1992.

MLA (9th ed.) Citation

Wells, David. The Penguin Book of Curious and Interesting Puzzles. Penguin Books, 1992.

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