000 00283nam a2200121Ia 4500
008 180721s9999 xx 000 0 und d
100 _aNIL
245 0 _a"SYSTEMATICS, BREEDING AND SEED PRODUCTION OF POTATOES"
260 _bNil
260 _c1985
365 _b0.00
942 _cBK
999 _c165053
_d165053