APA (7th ed.) Citation

Lovecraft, H. P., & Derleth, A. W. (1970). The shuttered room and other tales of horror. Panther Books.

Chicago Style (17th ed.) Citation

Lovecraft, H. P., and August William Derleth. The Shuttered Room and Other Tales of Horror. London: Panther Books, 1970.

MLA (9th ed.) Citation

Lovecraft, H. P., and August William Derleth. The Shuttered Room and Other Tales of Horror. Panther Books, 1970.

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