The Defence of Duffers Drift By Swinton, Ernest Dunlop Books / Paperback History: World › Africa Publisher: United States Army Infantry School, January 1972 Price $18.77 Free Shipping Send to a friend Used - Very Good Very Good condition. (Tactics, South Africa War, guerrilla warfare) $18.77 1 in Stock at Warehouse Quantity Add Free Shipping to continental U.S. OR $1.00 per item discount if shipped to store.