buono compares new and used prices for 28 books by Kenneth Oppel across European bookshops. The cheapest new one is Fils du ciel at €1.00; the cheapest second-hand copy is Petits génies contre les fantômes at €0.95.
Cheap books UK · Libri usati economici (Italia) · Livres pas chers (France) · Gebrauchte Bücher günstig (Deutschland) · Cheap books Europe
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