00411nam a2200157 a 450000100080000000500110000800800410001910000140006024500640007426000290013830000090016765300240017665300210020065300110022170000210023211128192000-10-11 1986 bl uuuu u0uu1 u #d1 aBARON, V. aEsforcos tratorios na aracao com tres chassis polivalentes. aPetrolina: Embrapac1986 a33p. aENGENHARIA AGRICOLA aMAQUINA AGRICOLA aTRATOR1 aANJOS, J.B. dos.