000			00328nam a2200145Ia 4500
008			170101s1946 xx 000 0 und d
082			_a500 H43H
100			_aHAWKS, Ellison
245		0	_aHow it works and how it's done
260			_bLondon _c1946
300			_a384p
650			_aSCIENCE
653			_aSCIENCE
942			_2ddc _cB
999			_c707 _d707