000 00302nam a2200109Ia 4500
001 MPKV109968
008 120911s9999 xx 000 0 und d
082 _a631.4
245 _aAgricultural Systems Vol.16-18 Part No.1-4
_c;
246 _aAgricultural Systems
260 _aEssex
_bApplied Scie. Publ.
_c1985
999 _c73291
_d73291