000			00376nam a2200145Ia 4500
008			200608s9999 xx 000 0 und d
020			_a185166 191 3
082			_a338.13 _bSPE.A
100			_aSPEDDING C R W
245		3	_aAn introduction to agricultural systems
260			_aUSA _bElsevier applied
300			_aviii;189p
650			_aAgricultural system
942			_cBK _2DDC
999			_c2349 _d2349