buono compares new and used prices for 17 books by Robert C. Martin across European bookshops. The cheapest new one is Proprement codeur : code de conduite pour développeurs professionnels at €12.49; the cheapest second-hand copy is Proprement codeur : code de conduite pour développeurs professionnels at €17.73.
Cheap books UK · Libri usati economici (Italia) · Livres pas chers (France) · Gebrauchte Bücher günstig (Deutschland) · Cheap books Europe
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