000 00388nam a2200145Ia 4500
008 130223s9999 xx 000 0 und d
245 _aDiseases of commercial florist crops
260 _aPennsylvania
260 _bPennsylvania Agricultural Experiment Station
260 _c1963
300 _a30 p.
440 _aNo. 517; Pennsylvania Agricult
901 _pS8636
942 _cB
_2udc
999 _c120062
_d120062