00338nam a2200121Ia 4500082002100000100001900021245008100040260003300121300001000154490002100164500000500185700002600190  a330.153bR448.OP  aRicardo, David  aOn the principles of political economy and taxationbcEd. by R. M. Hartwell  aHarmondsworthbPenguinc1971  a427p.  aPelican classics  a  aHartwell. R. M. ; ed.