000			00546nam a2200205 4500
001			00039128
003			PWmBRO
005			20190304143221.0
008			940512s1961 nyua 0 000 eng
010			_a 61007761
100	1	0	_aKoff, Richard M.
245	1	0	_aHow does it work? / _cby Richard M. Koff.
260			_aGarden City, N.Y. : _bDoubleday, _c1961.
300			_a288 p. : _bill.
650			_aMachinery.
650			_aImplements, utensils, etc.
650			_aTools.
650			_aElectric apparatus and appliances.
942			_2ddc
999			_c84859 _d84859