000			00428nam a22001577a 4500
003			OSt
005			20231212094428.0
008			231124b |||||||| |||| 00| 0 eng d
020			_a0309026024
082			_a338.91172
100			_aEckaus, Richard S.
245			_aAppropriate Technologies for Developing Countries
260			_aWashington D.C.: _bNational Academy Of Sciences, _c1977.
300			_axiii;140 p.
942			_2ddc _cRB
999			_c5419 _d5419