Cita APA (7a ed.)

Varallo, A. (2005). This Day in History. University of Iowa Press.

Cita Chicago Style (17a ed.)

Varallo, Anthony. This Day in History. Iowa City, IA: University of Iowa Press, 2005.

Cita MLA (8a ed.)

Varallo, Anthony. This Day in History. University of Iowa Press, 2005.