00392naa a2200133 a 450000100080000000500110000800800410001910000170006024500640007726000090014130000160015070000160016677300760018218224441999-03-23       1997    bl uuuu     u00u1 u    #d1 aCUNHA, G. R.  aTrigo - safra 1997bzoneamento agrícola Rio Grande do Sul.  c1997  ap. 138-145 1 aHAAS, J. C.  tIn: GUIA agropecuário do Rio Grande do Sul. [Passo Fundo: s.n.], 1997.