Doyle, R., Doyle, J., & Scott, G. F. (2016). The illustrated letters of Richard Doyle to his father, 1842-1843. Athens [Ohio]: Ohio University Press.
Chicago-tyylinen lähdeviittausDoyle, Richard, John Doyle, ja Grant F. Scott. The Illustrated Letters of Richard Doyle to His Father, 1842-1843. Athens [Ohio]: Ohio University Press, 2016.
MLA-viiteDoyle, Richard, John Doyle, ja Grant F. Scott. The Illustrated Letters of Richard Doyle to His Father, 1842-1843. Athens [Ohio]: Ohio University Press, 2016.
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