000			00322nam a2200133Ia 4500
008			140113s9999 xx 000 0 und d
082			_a633.001.7 M4
100			_a" Simmonds, N. W."
245			_aPrinciples of crop improvement
260			_b"ELBS, 1984"
300			_a408p.
650			_aCrop improvement
942			_cBK
999			_c63760 _d63760