000 00371nam a2200109Ia 4500
008 220204s9999 xx 000 0 und d
082 _a631.6.02:62
_bBIM
100 _aBimal Chandramal
245 0 _aIntroduction to soil and water conservation engineering(surveying, irrigation, drainage and soil conservation)
260 _aLudhiana
_bKalyani Publishers
_c1994
942 _cBK
999 _c41192
_d41192