1914-1918: The History of... www.goodreads.com

READ: The Course of the... www.khanacademy.org

The World at War, 1914–1918... www.hrc.utexas.edu

World War I | History,... www.britannica.com

Warfare 1914-1918 encyclopedia.1914-1918-onli...

World War I | History,... www.britannica.com

The Great War: 1914-1918 -... profilebooks.com

World War I | History,... www.britannica.com

READ: The Course of the... www.khanacademy.org

World War I | History,... www.britannica.com

Learn about the History of... www.the-map-as-history.com

Index Catalog // Vault vault.library.uvic.ca

World War I: Summary,... www.history.com

World War I (1914-1918) –... worldhistoryarchive.wordpre...

World War I (1914-1918) –... worldhistoryarchive.wordpre...

World War I | History,... www.britannica.com

World War I (The Great War)... www.emersonkent.com

The World Wars General... worldwarsgeneralknowledge.b...

Warfare 1917-1918 (USA) encyclopedia.1914-1918-onli...

The First World War,... www.audible.co.uk