00369naa a2200121 a 450000100080000000500110000800800410001910000270006024500750008726000090016270000170017177300590018818310312010-01-10       1972    bl ---       0--  u    #d1 aTRIPLETT JUNIOR, G. B.  aControl and ecology of weeds in continuous corn grown without tillage.  c19721 aLYTLE, G. D.  tWeed Science, Illinoisgv. 20, n. 5, p. 453-457, 1972.