000 00330nam a2200121Ia 4500
008 140113s9999 xx 000 0 und d
082 _a629.13.631 L0
100 _a"Baumgardner, M.F."
245 _aAerospace science and agricultural development
260 _a1970
_bAmerican Soc. Agronomy
_cU.S.A.
300 _a48
942 _cBK
999 _c58192
_d58192