000 00314nam a2200121Ia 4500
008 130225s9999 xx 000 0 und d
245 _aPreventing black rot losses in sweetpotatoes
260 _aWashington
_c1950
300 _a1-6 p.
440 _aUnited States Department of A
901 _a29632
942 _cB
_2udc
999 _c5819
_d5819