Lewis, J. R. (1966). Democracy: The theory and the practice. Allman.
Cita Chicago (17th ed.)Lewis, John Ryston. Democracy: The Theory and the Practice. London: Allman, 1966.
Cita MLA (9th ed.)Lewis, John Ryston. Democracy: The Theory and the Practice. Allman, 1966.
Atenció: Aquestes cites poden no estar 100% correctes.