R. Higham

• A Guide to the Sources of British Military History
• Report of the engineer on the survey of the Toronto & Lake Huron Rail-Road
• The Military History of the Soviet Union
• A guide to the sources of British military history
• Military History of Tsarist Russia
• Murder, He Wrote
• Report of the engineer on the survey of the Toronto & Lake Huron Rail-Road
• The British rigid airship 1908-1931