Loopgraafmortier Duits model H20 (Leichter Minenwerfer n/A) kaliber 7,58 cm met getrokken loop, op grondplaat met radaffuit weapon Browning .30-caliber machine guns / Gordon L. Rottman weapon Lewis gun / Neil Grant phoebus history of the world wars special submachine-gun / by Ian Hogg and John Batchelor Combat guns / edited by Chris Bishop & Ian Drury purnell's history of the world wars special big guns : artillery 1914-1918 / ed. by Bernard Fitzsimons modern military series / ed. michael leitch Artillery : the big guns go to war / by Curt Johnson : introd. by Aram Bakshian whitehall series of lectures Musketry : consisting of instructions in machine guns and their uses / by Simplex dell contemporary classics guns of August / Barbara W. Tuchman guns of August : August 1914 / Barbara W. Tuchman Volkskracht en opvoeding / door J.H. Gunning Wzn ballantine's illustrated history of world war ii. weapens books guns, 1914-18 / [by] I.V. Hogg
