Silk,Leonard S. <br/><br/>
Forecasting business trends 
by Leonard S.Silk 
 - Washington, D.C.  McGraw-Hill  1956 
 - 157p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Forecasting
<br/><br/><label>Dewey Class. No.: </label>T17 Si34