000 00259nam a22001097a 4500
040 _cHS
082 _a631
100 _aសុខ វ៉ាន់ថន
245 _aSoil and water management
260 _aRUA
_bសុខ វ៉ាន់ថន
_cNA
942 _cKB
999 _c8572
_d8572