Cita APA (7a ed.)

Levitas, M., Barry, D., Lee, N., & Schlein, L. (2002). A nation challenged: A visual history of 9/11 and its aftermath. New York Times/Callaway.

Cita Chicago Style (17a ed.)

Levitas, Mitchel, Dan Barry, Nancy Lee, y Lonnie Schlein. A Nation Challenged: A Visual History of 9/11 and Its Aftermath. New York: New York Times/Callaway, 2002.

Cita MLA (9a ed.)

Levitas, Mitchel, et al. A Nation Challenged: A Visual History of 9/11 and Its Aftermath. New York Times/Callaway, 2002.