00347naa a2200121 a 450000100080000000500110000800800410001910000170006024500590007726000090013665000160014577300640016120892272019-02-25       2018    bl uuuu     u00u1 u    #d1 aLOPES, M. A.  aA real contribuição do campo.h[electronic resource]  c2018  aAgricultura  tCorreio Braziliense, Brasília, DF, 11 mar. 2018. Opinião.