APA (7th ed.) Citation

Harkness, D. E. (2011). A discovery of witches. Viking.

Chicago Style (17th ed.) Citation

Harkness, Deborah E. A Discovery of Witches. New York: Viking, 2011.

MLA (8th ed.) Citation

Harkness, Deborah E. A Discovery of Witches. Viking, 2011.