000 00314nam a2200133Ia 4500
008 130225s9999 xx 000 0 und d
100 _aTrenk, F.B.
245 _aProducing boltwood
260 _aMadison
_c1952
300 _a1-15 p.
440 _aWisconsin Agriculture Extensi
901 _a36465
942 _cB
_2udc
999 _c6773
_d6773