Jennifer Boothroyd 
From Assembly Lines to Home Offices [PDF ebook] 
How Work Has Changed

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Many people use computers to work from home and other places. And special equipment makes work safer than in the past. But long ago, computers didn’t exist. Safety equipment hadn’t been invented either. In what other ways has work changed over time? Read this book to find out!Learn how daily life has changed over time in the Comparing Past and Present series part of the Lightning Bolt Books collection. With high-energy designs, exciting photos, and fun text, Lightning Bolt Books bring nonfiction topics to life!

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语言 英语 ● 格式 PDF ● ISBN 9780761380009 ● 出版者 Lerner Publishing Group ● 发布时间 2011 ● 下载 3 时 ● 货币 EUR ● ID 4742427 ● 复制保护 Adobe DRM
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