Prepared by G-3 Section, Headquarters, 15 Army Group Italy
To meet the moutainous characteristics of Italy, "new techniques had to be developed, and variations of standard tactical doctrine devised. The improvizations and adaptatons used throughout the campaign to meet the varied situations presented led...
"This 1957 manual is a guide for artillerymen in the techniques of sound ranging and flash ranging, and in the application of these techniques to tactical operations."