000 00368nam a2200145Ia 4500
008 130223s9999 xx 000 0 und d
100 _aWiersema, S.G.
245 _aPhysiological development of potato seed tubers
260 _aPeru
260 _c1985
300 _a0.833333333
440 _aNo. 20; International Potato C
901 _pS32862
942 _cB
_2udc
999 _c129708
_d129708