Wanjun Zhang Books

Qing dai Qianlong chao gui hua cheng tu mo te xing an yan jiu

By Wanjun Zhang

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Wo guo shang shi gong si ji gou tou zi zhe de zhi li xiao ying yan jiu

By Wanjun Zhang

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Ji yu CMMI de ruan jian gong cheng ji shi xun zhi dao

By Yulan Zhao, Wanjun Zhang, Ning Zheng

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Quan shu gong 17 zhang, fen ruan jian gong cheng jie shao,Xiang mu guan li,Gong cheng guo cheng guan li,Xiang mu zhi cheng guan li si da kuai nei rong.

Long wen bian ying

By Wanjun Zhang, Chenzheng Yang, Furong Han

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Guan chang tao lue

By Guyin Li, Wanjun Zhang, Yusheng Xue

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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.