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*[http://id.lib.harvard.edu/alma/990055782080203941/catalog ''The victory Victory of the Marne : the enemy's onslaught, order to stand firm, the battle, immediate results, historic consequences''] by Louis Madelin ; translated from the original French by Lilly M. Grove 1917. Part of the series ''Studies and documents on the war''. Harvard University Digital Library. Also available [https://archive.org/details/victoryofmarneth00made/mode/2up Archive.org]. [September 1914]*[https://archive.org/details/marnecampaig00whit/page/n5/mode/2up ''The Marne Campaign''] by Major F E Whitton 1917. Archive.org. A volume in the series ''Campaigns and their Lessons''.*[https://cgsc.contentdm.oclc.org/digital/collection/p4013coll7/id/1035 ''The Marne Campaign 1914''] by H von Kuhl, General of Infantry (Retired) Chief of Staff of the First Army, 1914. [German Army] 1936. Combined Arms Research Library Digital Library. 1936 translation of 1921 original [https://archive.org/details/dermarnefeldzug100kuhluoft/page/n5/mode/2up ''Der Marnefeldzug 1914''] Archive.org. [https://en.wikipedia.org/wiki/Hermann_von_Kuhl Hermann von Kuhl] Wikipedia.*[https://archive.org/details/in.ernet.dli.2015.523396/page/n5/mode/2up ''Liaison, 1914. A Narrative of the Great Retreat''] by Brigadier-General E L Spears (Late 11th Hussars) 1930 Archive.org. The author was then "the Liaison Officer between the British Army, and the Fifth, or most Northerly of the whole line of French Armies". From the outbreak of war to 14 September 1914. Also his book below under [[Western Front#Cavalry|Cavalry]].