000 00386nam a2200121Ia 4500
001 MPKV111633
008 120911s9999 xx 000 0 und d
082 _a631.3
245 _aAgricultural Engineering Vol.70 No-1-7
_c;
246 _aAgricultural Engineering Vol.55 No.1-12
260 _aUSA
_bAmerican society of agri engineering,St.Josaeph
_c1989
650 _aAgricultural Engineering
999 _c74931
_d74931