000 00445nam a2200157Ia 4500
008 130223s9999 xx 000 0 und d
080 _a595.752.5:591.4:632.38:632.92
100 _aPonsen, M.B.
245 _aSite of potato leafroll virus multiplication in its vector, myzus persicae : An
260 _aWageningen
260 _c1972
300 _a147 p.
440 _aNo. 72-16; Nederland Mededelin
901 _pS21564
942 _cB
_2udc
999 _c133375
_d133375