00523nam a22001817a 4500003000500000005001700005008004100022010001000063011001100073035001100084040000900095082001400104245009100118260005000209300003800259650001700297710002700314CHAP20220329143627.0101025s1988    us a    r     00010 eng d  a99536  a100508  a111194  cCHAP14a630bIn8900aIntroduction to agricultural hedging :bhome study coursec/por Chicago Board of Trade  aChicago, US :bChicago Board of Trade,cc1988  a67 p. :bilus., cuadros, gráfs.14aAgricultura.2 aChicago Board of Trade