000 00404nam a2200145Ia 4500
008 140208s9999 xx 000 0 und d
044 _aNetherlands
080 _a635.21 B467P
100 _aBeukema, H.P.
245 _aPotato improvement : some factors and facts
_cH.P. Beukema and D.E. Vender Zaag
260 _b
_a
_c1979
300 _a224p.; 25cm.
700 _avan der Zaagr, D.E.
942 _2udc
_cPB
999 _c10396
_d10396