APA (7th ed.) Citation

Frank, M. (2002). Understanding September 11th: Answering questions about the attacks on America (1. publ.). Viking.

Chicago Style (17th ed.) Citation

Frank, Mitch. Understanding September 11th: Answering Questions About the Attacks on America. 1. publ. New York: Viking, 2002.

MLA (9th ed.) Citation

Frank, Mitch. Understanding September 11th: Answering Questions About the Attacks on America. 1. publ. Viking, 2002.