APA (7th ed.) Citation

Seuss, D. (1997). The cat in the hat / by Dr. Seuss. HarperCollins Children's.

Chicago Style (17th ed.) Citation

Seuss, Dr. The Cat in the Hat / by Dr. Seuss. London: HarperCollins Children's, 1997.

MLA (9th ed.) Citation

Seuss, Dr. The Cat in the Hat / by Dr. Seuss. HarperCollins Children's, 1997.

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