000			00437nam a2200157Ia 4500
008			140224s9999 xx 000 0 und d
082			_a631:519.2:681.142 L9
100			_aDent, J.B.
245			_aSystems simulation in agriculture.
260			_aLondon _bApplied Science Publishers _c1979
300			_a180p.
600			_a J.B.Dent, M.J.Blackie.
600			_aBlackie, M.J.
650			_aAgriculture,Simulation Models
942			_cBK
999			_c96291 _d96291