Christos Zerefos Books

Twenty Years of Ozone Decline

By Georgios Contopoulos, Gregory Skalkeas, Christos Zerefos

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Twenty Years of Ozone Decline

By Christos Zerefos

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This book includes articles presented by leading scientists in the ozone field at the Symposium for the 20th Anniversary of the Montreal Protocol, jointly organized by the United Nations Environmen...

Twenty Years of Ozone Decline

By Christos Zerefos

Average: 0.00, 0 Ratings

Twenty Years of Ozone Decline

By Gregory Skalkeas, G. Contopoulos, Christos Zerefos

Average: 0.00, 0 Ratings

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.