00451n   a2200157 a 4500000002100000001000700021005001700028082001600045100001700061245002300078260004200101300001200143908000600155952011900161999001300280B B                 00024720220201161614.0  a340bL2 LAW  aHart, H.L.A.  aThe concept of Law  aLondonbOxford University Pressc1972  ax,263p.  aT  00102ddc4070aSGGSCCbSGGSCCd2020-09-22g15.80l0o340 L2 LAWp304r2020-09-22 00:00:00v15.80w2020-09-22yBK  c247d247