00491nam a22001697a 4500008004100000041002300041082001700064100002000081245005600101260003700157300001200194650002000206650001600226700002100242952004300263999001500306260406b        |||||||| |||| 00| 0 eng d  aEspañol o Ingles  aR333.335L434  aJ. Paul Leagans  aCambios Socioeconómicos en la Agricultura Moderna  aMéxicobEditorial Limusac1977  a407c23  aSocioeconomía  aagricultura  aCharles P.Loomis  aBIBLCUNORIbBIBLCUNORIyLIBRO FÍSIa  c1129d1129