Maintenance Manual for the M.L. 2 inch, M.L. 3 inch and S.B. 4.2 inch Mortars. WO 1645 Mortier 4.2 inch. M30. Wapenleer. VS 9-571 Small arms training : / War Office. Army Council. Vol. I. Pamphlet no. 9: Mortar (3-inch) : (India) Small arms training : Mortar (3-inch) : (India) / War Office. Army Council. Vol. I
