00346nam a22001337a 4500003000400000005001700004008004100021040002400062050001700086082001700103100001400120245004000134260003800174OSt20211101163924.0211101b        |||||||| |||| 00| 0 eng d  cHawassa University   a634.9/GOOb2  a634.9/GOOb2  aGoor A.Y.  aForest tree planting in arid zones   aNew York bThe Ronald Pressc1968