Farmers in a changing world:   The yearbook of agriculture 1940  
/ United States Department of Agriculture 
 - USA:   United States Government of Agriculture,   1940 
 - xii, 1215p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture
<br/><br/><label>Subjects--Index Terms: </label>Farming 
<br/><br/><label>Universal Decimal Class. No.: </label>R 63(058)   / H0