Landverraders! / door Max Blokzijl ; met een voorw. van N. Oosterbaan Engineering mathematics simply explained : a text-book for apprentices, students, and engineers / by H.H. Harrison Fire problems / by Major-General T. D. Pilcher battle of the Atlantic / John Costello & Terry Hughes imperial services library Tanks in battle / H.C.B. Rogers Trigonometry / by A.W. Siddons and R.T. Hughes Infantry uniforms of the British army / illustrated and described by P.H. Smitherman Hughes. XM-1 Thermal imaging system, June 1979 Hughes. Probeye infrared viewers, Take a new look primer of world bayonets : common knife and sabre bayonets / J. Walter and G. Hughes Engineers of the Southwest Pacific 1941-1945 / Hugh J. Casey Hugh Evelyn history of costume / ill. by Faith Jaques ; with a commentary by Margaret Stavridi