000 00340nam a2200133Ia 4500
008 130225s9999 xx 000 0 und d
100 _aSpen, H., Osburn, M.R.
245 _aControl of the citrus rust mite
260 _aWashington
_c1950
300 _a1-8 p.
440 _aUnited States Department of A
901 _a31100
942 _cB
_2udc
999 _c6047
_d6047