00492naa a2200169 a 450000100080000000500110000800800410001910000190006024500630007926000090014265000160015165000150016765000150018265000250019770000250022277300750024718325322010-01-10       1976    bl ---       0--  u    #d1 aALLISON, J. R.  aA technique to estimate input productivity from farm data.  c1976  aAgricultura  aEstimativa  aProdução  aProdução Agrícola1 aPARVIN JUNIOR, D. W.  tSouthern Journal of Agricultural Economicsgv. 8, n. 2, p. 5-11, 1976.