The Allgemeines Deutsches Kommersbuch (ADK) or Lahrer Kommersbuch is the most popular commercium book in Germany. It was first published in 1858 and came up to its 166th edition in 2013. It is the German equivalent of the Flemish studentencodex.
External links
edits:de:Allgemeines Deutsches Kommersbuch in the German Wikisource project.
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