000			00334nam a2200133Ia 4500
008			140113s9999 xx 000 0 und d
082			_a631(047.1 M0.32
100			_a" Brady, N. C."
245			_aAdvances in agronomy v.32
260			_b"New York : Academic Press Inc, 1980"
300			_a161p.
650			_aAgronomy
942			_cBK
999			_c63670 _d63670