Hedy Penner Books

Le Paraguay bilingue

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Ces analyses, en français ou en espagnol sont proposées par des universitaires travaillant dans le champ de la sociolinguistique et des politiques linguistiques et éducatives, à propos de la situat...

Guarani Aqui. Jopara Alla

By Hedy Penner

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Guarani Aqui. Jopara Alla

By Hedy Penner

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Guarani Aqui. Jopara Alla

By Hedy Penner

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Guarani Aqui. Jopara Alla

By Hedy Penner

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Sujet Fidele Citoyen

By Dominique Avon

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Guarani Aqui. Jopara Alla.

By Hedy Penner

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El descubrimiento del castellano paraguayo a traves del guarani

By Hedy Penner

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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.