Klein, Lawrence Robert. An introduction to econometric forecasting and forecasting models / Lawrence R. Klein, Richard M. Young. - Lexington, Mass. : Lexington Books, c1980. - xi, 155 p. : ill. ; 24 cm. - Whartoneconometric studies series. . Includes index. Includes bibliographical references. ISBN: 0669028967 Subjects--Topical Terms: Econometrics.Economic forecasting--Mathematical models.