APA (7th ed.) Citation

Power, S. (2002). A problem from hell: Merica and the age of genocide. Basic Books.

Chicago Style (17th ed.) Citation

Power, Samantha. A Problem from Hell: Merica and the Age of Genocide. New York: Basic Books, 2002.

MLA (9th ed.) Citation

Power, Samantha. A Problem from Hell: Merica and the Age of Genocide. Basic Books, 2002.