APA引文

Perrett, G. (1974). Days of sadness, years of triumph: The American people, 1939-1945. Penguin.

Chicago Style (17th ed.) Citation

Perrett, Geoffrey. Days of Sadness, Years of Triumph: The American People, 1939-1945. Baltimore: Penguin, 1974.

MLA引文

Perrett, Geoffrey. Days of Sadness, Years of Triumph: The American People, 1939-1945. Penguin, 1974.