Citazione Stile APA (7a Edizione)

Perrett, G. (1973). Days of Sadness Years of Triumph: The American People 1939-1945. University of Wisconsin Press.

Citazione stile Chigago Style (17a edizione)

Perrett, Geoffrey. Days of Sadness Years of Triumph: The American People 1939-1945. Wisconsin: University of Wisconsin Press, 1973.

Citatione MLA (9a ed.)

Perrett, Geoffrey. Days of Sadness Years of Triumph: The American People 1939-1945. University of Wisconsin Press, 1973.