Wallas, G. (1919). Human nature in politics. Constable.
Cita Chicago (17th ed.)Wallas, Graham. Human Nature in Politics. London: Constable, 1919.
Cita MLA (8th ed.)Wallas, Graham. Human Nature in Politics. Constable, 1919.
Atenció: Aquestes cites poden no estar 100% correctes.