Notes on Map Reading, 1929 - Engeland Voorschrift field survey pamphlet Lithographic processes / prep. under the dir. of the Chief of the Imperial General Staff ; [issued by the War Office] Military Engineering. Volume XIII. Survey. Part V. Lithographic Processes. 1941 - Engeland Voorschrift Manual of Map Reding, Photo Reading, and Field Sketching, 1929 - Engeland Voorschrift