00337nam a2200121Ia 4500008004100000040001700041082002500058100002000083245005200103260003400155300001000189650001600199190328s9999||||xx |||||||||||||| ||und||  aNITILcNITIL  221sta620.942bA741S  aArmytage, W H G 2aA Social history of engineeringcW H G Armytage  aLondonbFaber and Faberc1961  a378p.  aEngineering