Cita APA

Hardach, G. (1977). First world war 1914-1918. Allen Lane Penguin Books.

Chicago Edition Citation

Hardach, Gerd. First World War 1914-1918. Allen Lane Penguin Books, 1977.

Cita MLA

Hardach, Gerd. First World War 1914-1918. Allen Lane Penguin Books, 1977.

Atenció: Aquestes cites poden no estar 100% correctes.