00635nam a2200181Ia 4500082002100000100004100021245004000062260004800102300001500150500000500165690000600170700003200176952010200208952010200310964001700412921000900429999001500438  a338.01bSa177.PT  aSalter, W. E. G. and Reddaway, W. B.  aProductivity and technical changeb  aCambridgebCambridge University Pressc1966  axiv, 220p.  a  a   aReddaway, W. B. ; jt. auth.  00104070aISIbISId1998-09-09l0o338.01 Sa177.PTpDP2471r2019-02-14 00:00:00w2019-02-14yBK  00104070aISIbISId1998-09-09l0o338.01 Sa177.PTpDP3751r2019-02-14 00:00:00w2019-02-14yBK  abcdefg  a9728  c9728d9728