Roberto Sanchez Sanchez Books

La Morosidad del sector publico En el cumplimiento de sus obligaciones

By Juan De La Cruz Ferrer, Jose Maria Anarte Balanzategui, Carlos Vazquez Cobos, Raquel Ballesteros Pomar, Jesus Avezuela Carcel, Raul Salas Lucia, Alfredo Fernandez Rancano, Alejandro Cobos Sanchez, Antonio Alcolea Cantos, J. Felix De Luis, Jose Ramon Medina Garcia, Jose Ramon De Hoces Iniguez, Carlos Melon Pardo, Roberto Sanchez Sanchez, Nicolas Gonzalez Deleito Dominguez, Jesus Loma Barrie, Marta Guerrero Rodrigalvarez, Jose Ignacio Monedero Montero De Espinosa, Pablo Mayor Menendez, Santiago Milans Del Bosch Y Jordan De Urries, Jose Antonio Garcia Trevijano Garnica, Gonzalo Jimenez Blanco, Alvaro De Lacalle Acedo Rico, Jose Ignacio Vega Labella, Lucas Blanque Rey, Felix Plasencia Sanchez, Luis Perez De Ayala Becerril, Cesar Herrero Mazario, Miguel Angel Recuerda Girela, Elvira Gallardo Romera, Juan Martinez Calvo, Juan Jose Lavilla Rubira, Fernando Gutierrez Rizaldos, Pablo Silvan Ochoa, Eduardo Soler Tappa, Jose Gimenez Cervantes

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Historia de una resistencia indigena en San Miguel, Cuautitlan, siglos XVII y XVIII

By Roberto Sanchez Sanchez

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An excellent historical account of the indigenous rebellions of the late 18th and early 19th centuries in the state of Mexico, inspired by an exorbitant tax by the Spanish crown on the production a...

Relacion historica de la canteria en San Miguel de las Canteras Melchor Ocampo Mexico

By Roberto Sanchez Sanchez

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Legitimo Fibrocemento

By Roberto Sanchez Sanchez

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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.