000 00293nam a2200097Ia 4500
008 140208s9999 xx 000 0 und d
245 _aStudies on the distribution of potato viruses X and Y inPotato
_cRam Bahadur Singh
260 _bShimla HPU
_aShimla
_c1985
300 _a185p.
942 _2udc
_cPB
999 _c29444
_d29444