000			003400000a22001570044500
002			c.1
004			M
006			M
100			_qDickson, David
245			_aAlternative technology and the politics of technical change
250			_bFontana
260			_aGreat Britain
260			_c1974
650	7		_aASPECTOS SOCIALES
650	7		_aTECNOLOGIA
999			_c7663 _d7663