000 00327nam a2200121Ia 4500
008 180721s9999 xx 000 0 und d
100 _aSimmonds N.W
245 0 _aPrinciples of crop improvement
260 _b"Longman scientific & Technical,John willey & sons Inc,New York"
260 _c0
365 _b864.00
942 _cBK
999 _c152547
_d152547