000 00345nam a2200145Ia 4500
008 130223s9999 xx 000 0 und d
100 _aShafer, N.
245 _aAgricultural air-craft equipment
260 _aLincoln
260 _c1960
300 _a16 p.
440 _aNebraska Agricultural Experime
901 _pS2082
942 _cB
_2udc
999 _c115322
_d115322