Helmer-Hirschberg, Olaf. <br/><br/>
Looking forward :  a guide to futures research / 
Olaf Helmer. 
 - Beverly Hills, Calif. :  Sage Publications,  c1983. 
 - 376 p. :  ill. ; 
<br/><br/>Bibliography: p. 374-375. 
<br/><br/><label>ISBN: </label>0803920172 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Forecasting<br/>Forecasting
<br/><br/><label>Dewey Class. No.: </label>003  / HEL