Nacionalitats dels autors de sdpbooks

UK (65)
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USA (38)
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Sense marcar (17)

Germany (6)
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Ireland (5)
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Canada (4)
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India (4)
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France (4)
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Russia (4)
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England (4)
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Japan (4)
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Austria (2)
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Italy (2)
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Poland (2)
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Czech Republic (2)
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Brasil (1)
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Portugal (1)
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Argentina (1)
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China (1)
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França (1)
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Egypt (1)
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Espanya (1)
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South Africa (1)
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Turkey (1)
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Belarus (1)
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Switzerland (1)
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Australia (1)
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Sri Lanka (1)
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Sweden (1)
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Norway (1)
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Russian Empire (1)
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Rússia (1)
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USSR (1)
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Iran (1)
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Scotland (1)
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Pakistan (1)
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Denmark (1)
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