000 00286 am a2200121 a 4500
100 1 _aDin, A.S.
245 1 _aCitrus gummosis in Egypt
260 _aCairo
_c1934
300 _a1-44 p.
942 _2udc
_cB
440 _aEgypt Ministry of Agriculture. Bulletin No. 131
901 _aS51660
999 _c109286
_d109286