Antonio Guerra Books

La vida es una magia
La vida es una magia

By Antonio Guerra

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Problemas practicos y actualidad del Derecho de la Competencia
Problemas practicos y actualidad del Derecho de la Competencia

By Manuel Contreras Alfonsin, Jose Ma Bano Fos, Pablo Gonzalez De Zarate, Marta Yuste, Antonio Martinez Sanchez, Diego Crespo Lasso De La Vega, Eduardo Abril Fernandez, Roberto Vallina, Alfredo Gomez Alvarez, Henar Gonzalez Durantez, Jose Aitor Santana, Aida Oviedo Martinez, Alvaro Pascual Morcillo, Casto Gonzalez Paramo, Rafael Maldonado, Cristina Matia Garay, Joaquin Hervada, Rafael Allendesalazar, Jesus Alfaro Aguila Real, Pedro Callol, Luis Moscoso Del Prado, Gerard Perez Olmo, Gonzalo Rubio Hernandez Sampelayo, Jorge Masia, Oscar Barrero Gil, Jaime Folguera, Antonio Guerra, Angel Valdes Burgui, Carlos Vergez, Miguel Angel Recuerda Girela, Jordi Esteve Bargues, Inigo Igartua Arregui, Ana Valiente, Oriol Armengol I Gasull, Victoria Siguan Cervera, Pedro Suarez Fernandez, Javier Salinas Casado, Juan Jimenez Laiglesia, Crisanto Perez Abad, Alba Selles, Mario Saez Bascunana, Silvia Segade Sanz, Cani Fernandez

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Alfonso Guerra
Alfonso Guerra

By Antonio Guerra

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Sin colesterol-- y sin amargarse la vida
Gonzalez-Guerra
Gonzalez-Guerra

By Antonio Guerra

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La victoria sin alas
La victoria sin alas

By Antonio Guerra

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Sevilla Hospital de Indias
Las Filipicas
Las Filipicas

By Antonio Guerra

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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.

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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.

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