Morpurgo, M. (2013). The Sandman and the Turtles. Egmont.
Lua i Stíl Chicago (17ú heag.)Morpurgo, Michael. The Sandman and the Turtles. London: Egmont, 2013.
Lua MLA (8ú heag.)Morpurgo, Michael. The Sandman and the Turtles. Egmont, 2013.
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