APA (7th ed.) Citation

Ciardi, J., & Gorey, E. (1964). You know who. Lippincott.

Chicago Style (17th ed.) Citation

Ciardi, John, and Edward Gorey. You Know Who. Philadelphia: Lippincott, 1964.

MLA (9th ed.) Citation

Ciardi, John, and Edward Gorey. You Know Who. Lippincott, 1964.

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