Mechanical traction in war for road transport : with notes on automobiles generally / by Otfried Layriz ; transl. [from the German] by R.B. Marston Mechanical traction in war / Otfried Layriz ; transl. by R.B. Marston ; [with a new introduction by W.J. Hughes] Times history of the war in South Africa, 1899-1902 / ed. by L.S. Amery
