Jacqueline M. Cordova <br/><br/>
Hougnton Mifflin Social Studies Across the Centuries 

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 -  Across the centuries .
<br/><br/> Chinese empire and how they were keeping it. 
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<br/><br/><label>ISBN: </label>0-395-930666-9 
<br/><br/><label>Subjects--Index Terms: </label>Across the centuries