. . "Great Britain" . . "1600 - 1699" . . "1642 - 1649" . . "Military history"@en . "Military history" . . "History"@en . . "Military engineering during the great civil war, 1642-9" . . . . . "Military engineering during the Great Civil War 1642-9"@en . . . . . "Sources" . . . "Military engineering during the great Civil War, 1642-9 / by Lieutenant-Colonel W.G. Ross" . . "Military engineering during the Great Civil War, 1642-9"@en . . . . . . . . . "Military engineering during the great Civil War, 1642-9"@en . .