000 00500nam a2200145Ia 4500
008 140208s9999 xx 000 0 und d
044 _aU.S.A.
080 _a635.216 52 J316D
100 _aJastrzebski, K.
245 _aDevelopment of parental lines for breeding potato varieties adapted to the necessary tillage operations
_cJastrzebski, K. and Werner,E.
260 _bNational Technical Information Service
_aSpringfield
_c1974
300 _a22p,; 28cm.
700 _aWerner, E.
942 _2udc
_cPB
999 _c16410
_d16410