000 00387nam a2200121Ia 4500
001 MPKV061507
008 120911s9999 xx 000 0 und d
082 _a631.3
245 _aAgricultural Engineering Vol.58 No.1-12
_c;
246 _aAgricultural Engineering Vol.58 No.1-12
260 _aUSA
_bAmerican society of agri engineering,St.Josaeph
_c1977
650 _aAgricultural Engineering
999 _c59493
_d59493