Mario Polia Books

Despierta Remedio Cuenta Adivi. y Medicos 2 to

By Mario Polia Meconi, Mario Polia

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La Cosmovision Religiosa Andina en los Documentos Ineditos del Archivo Romano de la Compania de Jesus

By Mario Polia Meconi, Mario Polia

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La Inversion En El Peru 2002 2003

By Mario Polia

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La sangre del condor, chamanes de los Andes

By Mario Polia

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Glosario del curanderismo andino en el departamento de Piura (Peru)

By Mario Polia

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Se publicó por primera vez en 1988, en la revista Anthropológica de la Pontificia Universidad Católica del Perú. Esta nueva edición contiene nuevos datos y nuevas interpretaciones, además de consti...

Mio padre mi disse

By Mario Polia

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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.