000			00660nam a2200205Ia 4500
008			160601s9999 xx 000 0 und d
020			_a195061136
100			_aMokyr, Joel _957565
245			_aLever of Riches
245			_btechnological creativity and economic progress
260			_aNew York
260			_bOxford university press
260			_c1990
300			_aix, 349p.; 23cm.
650			_aDynamics and technological progress _957566
650			_aEconomic development - history _954786
650			_aIndustrial revolution _9840
650			_aMedieval technology _957567
650			_aTechnological innovations - economic aspects - history _957568
999			_c19879 _d19879