. . "Artillerie." . . "Weltkrieg (1914-1918)" . . "Erlebnisbericht." . . "Guerra mondiale 1914-1918 - Fonti epistolari." . . . . . . "Records and correspondence"@en . . . . . . . "Soldier boy : the letters of Gunner W.J. Duffell, 1915-18"@en . "Soldier boy : the letters of Gunner W.J. Duffell, 1915-18" . . "Soldier boy : the letters of gunner W.J. Duffell, 1915-18"@en . . . . . "Letters of gunner W.J. Duffell, 1915-18"@en . "Soldier boy : the letters of gunner W.J. Duffell : 1915-18" . . . . . "Personal narratives"@en . "Großbritannien." . .