000			00461nam a2200181 4500
003			OSt
008			220602b |||||||| |||| 00| 0 eng d
020			_a0070678251
082			_a651.82 _bWAL
100			_aWalker,Arthur L.
245			_aHow to Use Adding and Calculating Machines
250			_a4th Ed.;
260			_aToronto: _b McGraw Hill Book, _c1979.
300			_a218p.; _c28cm
650		0	_aCalculate
700			_aRoach,J.Kenneth
942			_2ddc _cLM
999			_c101374 _d101374