APA (7th ed.) Citation

De Angeli, M. (1949). Door in the wall. Doubleday.

Chicago Style (17th ed.) Citation

De Angeli, Marguerite. Door in the Wall. [S.l.]: Doubleday, 1949.

MLA (9th ed.) Citation

De Angeli, Marguerite. Door in the Wall. Doubleday, 1949.

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