Claudia Cirelli Books

Agua agricola para la zonas urbanas

By Sonsoles San Roman Gago, Claudia Cirelli

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Study of the problem of water resources and supply in San Luis Potosí, with focus on demands created by population growth in the city and the increasing needs of agriculture.

Agua desechada, agua aprovechada

By Claudia Cirelli

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Societes urbaines et dechets

By Florence Troin, Benedicte Florin, Claudia Cirelli

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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.