000 00390nam a2200133Ia 4500
008 130225s9999 xx 000 0 und d
100 _aJ.B. Norton
245 _aMethods used in breeding asparagus for rust resistance
260 _aWashington
_bUnited States Department of Agriculture
_c1913
300 _a60p.
440 _aBureau of plant industry, No.
901 _a5666
942 _cB
_2udc
999 _c1089
_d1089