00451cam a22001817a 4500003000500000005001700005008004100022010001000063011001000073035001000083040000900093082001500102100002100117245004700138260003300185300002000218650003100238CHAP20220329140655.0971013s1936            r     00010     d  a55800  a56772  a60925  cCHAP  a630.1bS2400aSchafer, Joseph.14aThe social history of american agriculture  aNew York :bMacMillan,c1936  a302 p.b: ilus.14aSociología ruralxE.U.A.