Roldan Jimeno Aranguren Books

El culto a los santos en la cuenca de Pamplona (siglos V-XVI)

By Roldan Jimeno Aranguren

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Autogobierno de Vasconia

By Roldan Jimeno Aranguren

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Interactive index of the seven-volume work "Autogobierno de Vasconia. Desarrollo y crisis. documentos (1978-2006). Presents bibliographical records with summaries of each document.

Origenes del cristianismo en la tierra de los vascones

By Roldan Jimeno Aranguren

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Iruneko historia

By Roldan Jimeno Aranguren, Inaki Azkona Huercanos

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Historia de Pamplona

By Angel Erro, Roldan Jimeno Aranguren, Inaki Azkona Huercanos, Andrea Ganchegui, Marama Taldea

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Notitia vasconiae

By Roldan Jimeno Aranguren

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How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

If you’re in the world of books—whether as a publisher, librarian, bookseller, or avid collector—you’ve likely come across the terms ISBN-10 and ISBN-13. Understanding these formats and knowing how to convert between them is essential for maintaining consistency and compatibility in book records. In this post, we’ll cover everything you need to know about ISBN conversions, step by step.

What is an EAN and How Does it Relate to an ISBN?

If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.