APA (7th ed.) Citation

Liu, M. M. (2009). Darkness calls (Ace mass-market ed.). Ace Books.

Chicago Style (17th ed.) Citation

Liu, Marjorie M. Darkness Calls. Ace mass-market ed. New York: Ace Books, 2009.

MLA (8th ed.) Citation

Liu, Marjorie M. Darkness Calls. Ace mass-market ed. Ace Books, 2009.

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