Long-range forecasting :   from crystal ball to computer / 
J. Scott Armstrong 
 - New York :   John Wiley,  c1978 
 - xviii, 612 p. 
<br/><br/> Comprehensively covering all aspects of long-range forecasting methods relevant to the social, behavioral and management sciences, this book is a synthesis of research in economics, sociology, psychology, transportation, education, and management.