Crosby, John V. <br/><br/>
Cycles, trends and turning points  practical marketing and sales forecasting techniques 
John V. Crosby. 
 - Illinois  NTC Books  2001 
 - xii, 323p., 23cm. 
<br/><br/><label>ISBN: </label>0 - 8442 - 3244 - 0. 
<br/><br/><label>Dewey Class. No.: </label>658.8100112  / C74C