00300nam a2200121 a 450000100080000000500110000800800410001910000230006024500620008326000150014530000090016065000090016913289032015-11-23       1979    bl uuuu      00u1 u    #d1 aFAO, Roma, Italia.  aA provisional methodology for soil degradation assessment  aRomec1979  a84p.  aSolo