000			00457nam a2200145Ia 4500
008			140208s9999 xx 000 0 und d
044			_aU.S.A.
080			_a581.134 15 B238M
100			_aBarfield, B.J., ed.
245			_aModification of the aerial environment of plants _cedited by B.J. Barfield
260			_bAmerican Society of Agricultural Engineers _aMichigan _c1979
300			_avi, 538 p.; 23cm.
700			_aGerber, J.F., ed.
942			_2udc _cGB
999			_c16352 _d16352