000			00367nam a2200085 4500
008			220706s1962 gb ||||| |||| 00| 0 eng d
100			_9227414 _aHabakkuk, H. J.
245			_aAmerican and British technology in the nineteenth (19th) century : _bthe search for labour-saving inventions / _cby H. J. Habakkuk.
264			_aCambridge [Eng.] : _bAt the University Press, _c1962.
999			_c602317 _d602315