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  "label" : "Twain's heroes, Twain's worlds | Hoffman, Andrew Jay | Print | 1988–",
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  "label" : "Mark Twain, Tom Sawyer and Huckleberry Finn | Hutchinson, Stuart | Print | 1998–",
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  "label" : "In bad faith | Robinson, Forrest G. | Print | 1992–",
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}, {
  "label" : "The adventures of Huckleberry Finn | Redding, Sandra; Twain, Mark | Print | 2004–",
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}, {
  "label" : "Literatur-Kartei, Mark Twain - Tom Sawyers Abenteuer | Dürr, Sylvia | Print | 1996–",
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  "label" : "Literatur-Kartei, Mark Twain - Tom Sawyers Abenteuer | Dürr, Sylvia | Print | 1994–",
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  "label" : "Monitoring & evaluation report, fiscal year ... | Mark Twain National Forest (Agency : U.S.) | Datenträger; Online-Ressource | 2001–2013",
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  "label" : "Mark Twain National Forest annual report | United States.. Forest Service | Datenträger; Online-Ressource | 1999–",
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}, {
  "label" : "Political economy | Twain, Mark; NetLibrary, Inc | Datenträger; Online-Ressource",
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  "label" : "A tramp abroad | Twain, Mark; NetLibrary, Inc | Datenträger; Online-Ressource",
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  "label" : "The Twainian | Mark Twain Society of Chicago; Mark Twain Association of America; Mark Twain Research Foundation; Roy J. Friedman Mark Twain Collection (Library of Congress) | Datenträger; Online-Ressource | 1939–2010",
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  "label" : "Mark Twain's the mysterious stranger and the critics | Tuckey, John S. | Print | 1968–",
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  "label" : "Twain's The adventures of Tom Sawyer | Roberts, James L. | Print | 2001–",
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  "label" : "Mark Twain and youth | Mac Donnell, Kevin B.; Rasmussen, Raymond Kent | Print | 2016–",
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  "label" : "On the poetry of Mark Twain | Scott, Arthur Lincoln; Twain, Mark | Print | 1966–",
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