000 00340nam a2200145Ia 4500
008 130223s9999 xx 000 0 und d
100 _aHanway, J.J.
245 _aHow a corn plant develops
260 _aAmes
260 _c1966
300 _a1-17 p.
440 _aIowa Agricultural Experiment S
901 _pS13517
942 _cB
_2udc
999 _c124800
_d124800