00259nam a2200121   45000010006000000050017000069000010000231000018000332450036000517730026000879420007001139990017001205064520260918151351.0  a11529  aALEXY, Robert  aLa doble naturaleza del derecho  gC300 D624 29 - 58 pp.  c16  c50645d50645