000 00263nam a2200121Ia 4500
999 _c1799
_d1799
100 _aLouis Toft
245 _aTheory of Machines
250 _a6
260 _c1961
_aLondon
_bSIR Isaac Pitman & Sons Ltd.
300 _ax+540
700 _aKersey A T J
942 _cBK