000			00609nam a22001937a 4500
999			_c34929 _d34929
003			BD-DhPL
005			20200624170338.0
008			190205b ||||| |||| 00| 0 eng d
040			_aBD-DhPL _bEnglish. _cBD-DhPL _dBD-DhPL _eBD-DhPL
082			_a608.7 / C886d
100			_aCrowther, J. G. _9120490
245			_aDiscoveries and inventions of the 20th century / _cJ. G. Crowther.
260			_aLondon : _bRoutledge & Kegan Paul, _cc 1966.
300			_axix, 434 p. : _bill. ; _c26 cm.
500			_aIncludes index.
508			_a316
650			_aInvention _vHistory _x20th century. _9122621
942			_2ddc _cBK