00468nam a2200145 a 450000100080000000500110000800800410001910000180006024500470007826000380012530000100016350001020017365000160027565000310029119811282014-10-02       1975    bl uuuu     u00u1 u    #d1 aDILLON, J. L.  aGuidelines to systems research priorities.  aBrasília, DF: IICA/EMBRAPAc1975  a17 p.  aPaper to IICA/EMBRAPA Seminar on Systems Production Research in Agriculture, Brasília, DF, 1975.  aAgricultura  aProjeto de Desenvolvimento