Trevelyan, G. M. (1952). The seven years of William IV. A Reign cartooned by John Doyle (1a. ed.). Avalon Press.
Citace podle Chicago (17th ed.)Trevelyan, George Macaulay. The Seven Years of William IV. A Reign Cartooned by John Doyle. 1a. ed. Londres: Avalon Press, 1952.
Citace podle MLA (9th ed.)Trevelyan, George Macaulay. The Seven Years of William IV. A Reign Cartooned by John Doyle. 1a. ed. Avalon Press, 1952.
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