00316naa a2200121 a 450000100080000000500110000800800410001910000170006024500520007726000090012965000140013877300420015216035861995-06-27       1981    bl ---       0--  u    #d1 aCAUDERON, A.  aSur les approches ecologiques de l'agriculture.  c1981  aAgronomia  tAgronomiegv.1, n.8, p.611-616, 1981.