00451nam a2200145 a 450000100080000000500110000800800410001910000910006024500470015126000680019830000090026665000100027565000120028565300080029712915822000-09-12       1981    bl uuuu     u0uu1 u    #d1 aESTADOS UNIDOS. Department of Agriculture, Forest Service, Forest Products Laboratory.  aAge of woodbeffective timber utilization.  aMadison: USDA. Forest Service, Forest Products Laboratoryc1981  a12p.  aIdade  aMadeira  aUso