APA (7th ed.) Citation

Henry. (2013). Black heart (Ace mass-market ed.). Ace Books.

Chicago Style (17th ed.) Citation

Henry. Black Heart. Ace mass-market ed. New York: Ace Books, 2013.

MLA (8th ed.) Citation

Henry. Black Heart. Ace mass-market ed. Ace Books, 2013.

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