Hongjun Zhang Books

She hui jing ji zheng ce di huan jing fen xi

By Zhang Hongjun.

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Luyisi Bunuaier

By Hongjun Zhang

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Wai zi yin hang

By Hongjun Zhang

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Gong wu yuan lu yong kao shi zhuan xiang ti ku

By Li Yongxin Gong Wu Yuan Kao Shi, Hongjun Zhang

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Ben shu fen wei shen lun bi bei li lun zheng ce, Quan mian jian cheng xiao kang she hui, Quan mian shen hua gai ge, Quan mian tui jin yi fa zhi guo, Quan mian cong yan zhi dang deng bu fen.

Wo guo kuai ji fa gui wen ti yan jiu

By Hongjun Zhang

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Kuai ji ji chu

By Hongjun Zhang

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China Environmental Law Deskbook

By Tad Ferris, Hongjun Zhang

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Complex Systems Design and Management

By Junchen Yao, Lefei Li, Hongjun Zhang, Daniel Krob, Xinguo Zhang

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Complex Systems Design and Management

By Junchen Yao, Lefei Li, Hongjun Zhang, Daniel Krob, Xinguo Zhang

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Tian xin lai fu

By Hongjun Zhang

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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.