ISBN 90-6644-125-9. Date December 2008 Source Own work Author Woudloper, Übersetzung von Jo Other versions Image:Hercynides NL.svg, Image:Hercynides EN.svg...
Petroleum Maatschappij BV (2e druk), ISBN 90-6644-125-9. Source Own work Author Woudloper Other versions Image:Hercynides EN.svg, Image:Hercynides DE.svg...
versions Derivative works of this file: Hercynides CS.svg Hercynides IT.svg Image:Hercynides NL.svg, Image:Hercynides DE.svg, Image:Hercynides IT.svg...
