APA (7th ed.) Citation

Bellairs, J., & Gorey, E. (1993). The mansion in the mist. Puffin Books.

Chicago Style (17th ed.) Citation

Bellairs, John, and Edward Gorey. The Mansion in the Mist. New York, N.Y., U.S.A.: Puffin Books, 1993.

MLA (9th ed.) Citation

Bellairs, John, and Edward Gorey. The Mansion in the Mist. Puffin Books, 1993.