00427nam a2200157 a 450000100080000000500110000800800410001910000180006024500630007826000410014130000100018265300250019270000200021770000150023770000170025211160721998-10-27       1971    bl uuuu      00u1 u    #d1 aJOHNSON, R.T.  aAdvances in sugarbeetbproduction:principles and pratices.  aUSA: The Iowa State Universityc1971  a469p.  aBETERRABA ACUCAREIRA1 aALEXANDER, J.T.1 aRUSH, G.E.1 aHAWKES, G.R.