APA (7th ed.) Citation

Dr. Seuss. (1957). The Cat in the Hat. HarperCollins.

Chicago Style (17th ed.) Citation

Dr. Seuss. The Cat in the Hat. London: HarperCollins, 1957.

MLA (9th ed.) Citation

Dr. Seuss. The Cat in the Hat. HarperCollins, 1957.

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