Ch Wittekind Books

Tnm Classification 6th Edition Tnm Supplement 3rd Edition and Prognostic Factors 2nd Edition

By Ch Wittekind, L. H. Sobin, F. L. Greene

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TNM atlas

By Ch Wittekind, H. Asamura, L. H. Sobin

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"The TNM Supplement, 4th Edition, includes new, detailed definitions of anatomical sites, regional lymph nodes, and TNM categories. It answers questions that frequently arise during daily use of th...

TNM Klassifikation maligner Tumoren

By G. Wagner, Ch Wittekind

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TNM Klassifikation Maligner Tumoren

By H. J. Meyer, F. Bootz, G. Wagner, Ch Wittekind

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TNM Klassifikation Maligner Tumoren

By G. Wagner, Ch Wittekind

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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.