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  Search result  Your search for [subject]Farm tractors -- United States -- History returned 1 record.  
     
  Book The diffusion of the tractor in American agriculture : 1910-60.

by Olmstead, Alan L.; Cambridge: National Bureau of Economic Research, 2000.

Subject: Farm tractors -- United States -- History; Agriculture -- Economic aspects -- United States -- History; Diffusion of innovations -- United States -- History; Capital investments -- United States -- History.

 
     
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