Power, S. (2002). A problem from hell: Merica and the age of genocide. Basic Books.
Dyfyniad Arddull ChicagoPower, Samantha. A Problem from Hell: Merica and the Age of Genocide. New York: Basic Books, 2002.
Dyfyniad MLAPower, Samantha. A Problem from Hell: Merica and the Age of Genocide. Basic Books, 2002.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.