APA (7th ed.) Citation

De Angeli, M. (1990). The door in the wall. Bantam Doubleday Dell Books for Young Readers.

Chicago Style (17th ed.) Citation

De Angeli, Marguerite. The Door in the Wall. New York: Bantam Doubleday Dell Books for Young Readers, 1990.

MLA (8th ed.) Citation

De Angeli, Marguerite. The Door in the Wall. Bantam Doubleday Dell Books for Young Readers, 1990.

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