000 00303nam a22001217a 4500
040 _cSY
082 _a333
100 _aVON MONIN; វន មុនិន្ទ
245 _aWatershed management, ការរៀបចំទីជំរាល
260 _aRUA
_bVON
_c1998
300 _a58p.
942 _cKB
999 _c9418
_d9418