<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="Doe, John" opf:role="aut">John Doe</dc:creator> 
<dc:publisher>John Doe Publishing</dc:publisher>
<dc:date opf:event="publication">2013-11-07</dc:date>
<dc:rights>Copyright ©2013 by John Doe</dc:rights>