Wolfgang Rosen Books

Die Okonomie des Kolner Stiftes St. Aposteln

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"Die Studie konzentriert sich, und damit erstmals in dieser Art für ein kirchliches Institut Kölns, auf die detaillierte Analyse der ökonomischen Strukturen und Entwicklungen vom Mittelalter bis 18...

Quellen zur Geschichte der Stadt Koln

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Die Okonomie des Kolner Stifts St. Aposteln

By Wolfgang Rosen

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Siegburg

By Elfi Pracht Jorns, Esther Weiss, Wolfgang Rosen, LVR Institut Fur Landeskunde Und Regionalgeschichte

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Porz

By Wolfgang Rosen, Christian Hillen

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Geschichte in Koln 67

By Wolfgang Rosen, Joachim Oepen

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Dolomo

By Wolfgang Rosen

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Die Pralinen des Ferdinand Mending

By Wolfgang Rosen

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Klosterkultur und Sakularisation im Rheinland

By Wolfgang Rosen, Georg Molich, Joachim Oepen

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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.