00488nam a2200181 a 450000100080000000500110000800800410001910000180006024500820007826000350016030000100019549000290020565000140023465000090024865000110025765300190026870000190028712464322013-02-20       2001    bl uuuu     u0uu1 u    #d1 aPETTRY, D. E.  aArsenic concentrations in selected soils and parent materials in Mississippi.  aMississippi State: MAFESc2001  a18 p.  a(MAFES. Bulletin, 1104).  aArsênico  aSolo  aVeneno  aConcentração1 aSWITZER, R. E.