APA (7th ed.) Citation

Seuss, D. (1959). Happy birthday to you! Random House.

Chicago Style (17th ed.) Citation

Seuss, Dr. Happy Birthday to You! New York: Random House, 1959.

MLA (8th ed.) Citation

Seuss, Dr. Happy Birthday to You! Random House, 1959.

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