00856cam a22002051 4500006772645MiAaHDL20101113000000.0m d cr bn ---auaua860606s1929 nyua b 000 0 eng 29002043 sdr-coo1209217sdr-wu2506081(OCoLC)5758970NICNICS495.U75Ullrich, Fred Theodore.Our farm world;a source book in general agriculture; a textbook for teachers in rural schools, seventh and eighth grades of elementary graded schools, junior high schools, and first years of four-year high schools,by Fred T. Ullrich ...New York,Chicago [etc.]Longmans, Green and co.,1929.xi p., 1 l., 603 p.incl. front., illus., diagrs.21 cm.Longmans' school science series"References" at end of most of the chapters.Mode of access: Internet.Agriculture.00677264520100315100312.020101113000000.020120814065113.02025-01-17T18:31:18ZSDR-COOUNKNOWNloader.pl-001-001BKsdr-coo1209217cooSDRCOOcoo.31924003324880COO1209217COOCOO20250117googlecoo.319240033248801929pdrenWUWU20250117googlewu.890437334681929pdren