XiaoJun Chen Books

Kuan Fang Shi Jian Yan Jiu

By XiaoJun Chen, 张殿业., Dianye. Zhang, Zhenqi Zhao, 张殿业主编, Dianye Zhang, Zhenqi Zhao, Xiaojun Chen, 张殿业, 赵振奇, 陈晓珺主编, 张殿业, 赵振奇, 陈晓珺, 张殿业等主编, 张殿业, 赵振奇, 陈晓

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1 (p0-1): 第一章劳动宽放时间概述 1 (p0-2): 第一节宽放时间的概念、内容和意义 3 (p0-3): 第二节宽放时间研究的历史 5 (p0-4): 第二章劳动工效学 5 (p0-5): 第一节劳动工效学的概念 6 (p0-6): 第二节劳动的划分 7 (p0-7): 第三节劳动系统的确立 21 (p0-8): 第三章劳动生理学基础与劳动负荷调查研究 21 (p...

Popularization and Application of Agricultural Technology and Agricultural Development

By XiaoJun Chen

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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.