00434nam a2200133Ia 4500008004100000040001700041082002200058100001700080245010400097250000800201260003400209300001500243650004200258190328s9999||||xx |||||||||||||| ||und||  aNITILcNITIL  221sta330.1bM29P  aMalthus, T R 0aPrinciples of political economybconsidered with a view to their practical applicationcT R Malthus  a2nd  aOxfordbBasil Blackwellc1951  aliv, 446p.  aEconomics; wealth; Labor productivity