APA (7th ed.) Citation

Derleth, A. (1941). Someone in the dark. Arkham House.

Chicago Style (17th ed.) Citation

Derleth, August. Someone in the Dark. [Sauk City, Wis.]: Arkham House, 1941.

MLA (9th ed.) Citation

Derleth, August. Someone in the Dark. Arkham House, 1941.

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