W. & A.K. Johnston Limited. "Detailed map of the seat of war from Chateau Salins to Mannheim & Worms to Strasbourg." Map. Edinburgh: W. & A.K. Johnston, [1870]. Norman B. Leventhal Map & Education Center, https://collections.leventhalmap.org/search/commonwealth:ht2507731 (accessed May 04, 2024).