Waugh, Frederick V  <br/><br/>
Graphic analysis in agricultural economics / 
Frederick V Waugh; United States. Agricultural Marketing Service. 
 - Washington, D.C. :   U.S. Dept. of Agriculture,  Agricultural Marketing Service, 1957. 
 - 69 p. :  ill.;  24 cm. 
 - Agriculture handbook (United States. Department of Agriculture),   No. 128.  .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture--Economic aspects-- Research.<br/>Graphic methods.  <br/>Agriculture -- Statistics. 
<br/><br/><label>Dewey Class. No.: </label>338.10212  / WAG 1957