000 00346nam a2200109Ia 45e0
008 181001s1988 xx 000 0 und d
245 0 _aJournal of soil & water conservation V.3
260 _aPatna
_bsoil cons.socity ind.
_c1988
300 _a220
942 _2ddc
_cBK
999 _c4022
_d4022