000 00308nam a2200121Ia 4500
008 220204s9999 xx 000 0 und d
082 _a062
_bDUN
100 _aP D
245 0 _aAppropriate technology: Technology with a human face
260 _aLondon
_bMacmillan
_c1978
650 _aTechnology
942 _cBK
999 _c31789
_d31789