Alfred Haid Books

Genauigkeits- und Random-Tabellen

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Competition Efficiency and Welfare

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Competition, Efficiency and Welfare contains a collection of papers in honor of Manfred Neumann. This collection was prepared as a tribute to a teacher and scholar, whose accomplishments have enric...

Competition Efficiency and Welfare

By Dennis C. Mueller

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Competition Efficiency and Welfare

By Dennis C. Mueller, Alfred Haid, Jurgen Weigand

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Informationsokonomik und Guterpreise

By Alfred Haid

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Theoretische Volkswirtschaftslehre Arbeitsbuch Mikrookonomik

By Manfred Neumann, Alfred Haid, Jurgen Weigand

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Competition Efficiency and Welfare

By Dennis C. Mueller, Alfred Haid, Jurgen Weigand

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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.