00473nam a2200145Ia 4500008004100000082002200041100002800063245003300091260004800124300001000172650001700182942000700199952010400206999001700310140113s9999    xx            000 0 und d  a631.459:631.61 G6  a" Ayres, Quincy Claude"  aSoil erosion and its control  b"New York : McGraw-hill book company, 1936"  a365p.  aSoil erosion  cBK  00104070aKYMbKYMd2014-01-13l0o631.459:631.61 G6pKBK397r2014-01-13 00:00:00w2014-01-13yBK  c64116d64116