000 00267nam a2200121Ia 4500
100 _aNida, W.
942 _cBK
245 _aPioneers of invention
260 _aLondon
_bGeorge G.Harrap and Co.
_c1927
082 _a608.7Nid
_bNid
300 _a189
546 _aEnglish
999 _c338712
_d338712
041 _aeng