000 00312nam a2200121Ia 4500
008 220204s9999 xx 000 0 und d
082 _a631.6.02
_bAYR
100 _aAYRES, Quincy Claude
245 0 _aSoil erosion and its control
260 _aNew York
_bMcGraw Hill
_c1936
650 _aSoil erosion
942 _cBK
999 _c19392
_d19392