00434nam a2200121Ia 4500008004100000082002300041100002900064245006200093250000600155260002500161300000600186650012000192150614s9999    xx            000 0 und d  a330.91724  STE-E    aFrances Stewart & Others  aThe Economics of New technologies in Developing Countries  a1  bWestview Pressc1982  a0  aThe Economics of New technologies in Developing Countries Frances Stewart & Others  STUDIES ON CHOICE  OF TECHNIQUE