The construction of defensive positions
By: Sixt von Armin
Contributors: Great Britain. Army. General Staff. Intelligence Branch
Publisher: Army Printing and Stationery Services A
Published: 1917
Place of publication: London]
Language: eng
Notes: "S.S. 574; Ia/38494".

"General Staff (Intelligence), General Headquarters, 18th August, 1917".

"Translation of a German document".