000			004210000a22001570004500
245			_aHow television works : an illustrated non mathematical account of its principles
100			_aHolm, W.A.
100			_aMonypenny, A.F., trans.
100			_aDucloux, G., trans.
250			_a2d rev. ed.
260			_aLondon _bMacmillan _c1963
300			_a351 p., ill.
080			_a621.397 _bH6
041			_aEN
942			_cBK
999			_c94920 _d94920