APA (7th ed.) Citation

De Angeli, M. (1977). The door in the wall. Laurel-Leaf Books.

Chicago Style (17th ed.) Citation

De Angeli, Marguerite. The Door in the Wall. New York: Laurel-Leaf Books, 1977.

MLA (9th ed.) Citation

De Angeli, Marguerite. The Door in the Wall. Laurel-Leaf Books, 1977.