00346nam a22001337a 4500003000400000005001700004008004100021020001500062040000700077100001300084245008800097260001900185300000800204OSt20211015092044.0211015b        |||||||| |||| 00| 0 eng d  a0192156590  chu  ad.f.owen  aman 's environmental predicament an introduction to human ecolgy in tropical africa  bnew workc1973  a214