Ayres, Robert U. <br/><br/>
Technological forecasting and long-range planning 

 - New York  McGraw-Hill Book Company  1969 
 - xv,237p.  24cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Technological forecasting
<br/><br/><label>LC Class. No.: </label>T174.A9