Major statistical series of the US Department of Agriculture  : how they are constructed and used  Volume 1  Agricultural prices and parity 
US Department of Agriculture 
 - Washington  USDA  1970 
 - 44 p.  26 cm 
 - Agriculture Handbook / USDA  1 .
 - Agriculture Handbook / USDA Agricultural prices and parity .
<br/><br/><label>Subjects--Index Terms: </label>Eua Datos estadisticos Economia agricola