APA (7th ed.) Citation

Johnson, C. (1960). A picture for Harold's room: A purple crayon adventure. HarperCollins.

Chicago Style (17th ed.) Citation

Johnson, Crockett. A Picture for Harold's Room: A Purple Crayon Adventure. New York: HarperCollins, 1960.

MLA (9th ed.) Citation

Johnson, Crockett. A Picture for Harold's Room: A Purple Crayon Adventure. HarperCollins, 1960.

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