Crosby, John V. Handbook of practical marketing sales forecasting techniques cycles, trends, and turning points / [Book] : John V. Crosby. - Lincolnwood, IL : NTC Business Books, c2000. - xii, 321 p. : ill. ; 24 cm. Includes index. All. ISBN: 0844232440 (hbk) Subjects--Topical Terms: Marketing research.Sales forecasting. Dewey Class. No.: 658.802