000 00280nam a22001097a 4500
020 _a9264114920
082 _a621.4834
245 _aAppropriate technology :
_bProblems and promese,
_cedited by Nicolas Jequier.
260 _aFrance:
_bOECD,
_cC1976.
300 _a344P,;
942 _cBK01
999 _c5860
_d5860