00469naa a2200169 a 450000100080000000500110000800800410001910000180006024500750007826000090015365000110016265000100017365300150018365300280019865300230022677300500024918312732010-01-10       1978    bl ---       0--  u    #d1 aAUSTIN, R. B.  aActual and potential yields of wheat and barley in the United Kingdom.  c1978  aCevada  aTrigo  aInglaterra  aProdutividade potencial  aProdutividade real  tADAS Quarterly Reviewgn. 29, p. 76-87, 1978.