<dc:title>自由软件，自由社会（第三版）</dc:title> 
<dc:language>zh-CN</dc:language> 
<dc:creator opf:file-as="BLUG" opf:role="aut">Beijing GNU/Linux User Group</dc:creator> 
<dc:publisher>GNU Press</dc:publisher>
<dc:date opf:event="publication">2016-10-02</dc:date>
<dc:rights>Copyright ©2016 Beijing GNU/Linux User Group</dc:rights>