00349nam a22001337a 4500003000400000005001700004008004100021020001500062040000700077082001700084100002100101245005000122260004300172OSt20220429143953.0220429b        |||||||| |||| 00| 0 eng d  a0117101400  cHU  a634.96580941  a Wittering, W. O  a Weeding in the forestba work study approach  aLondon :b H.M. Stat. Office, c 1974.