Allard, R. J. An approach to econometrics / R. J. Allard. - New York : Wiley, [1975] c1974. - 227 p. : ill. ; 23 cm. "A Halsted Press book." Includes index. Bibliography: p. 221-[222] ISBN: 0470023112 LCCN: 75004614 Subjects--Topical Terms: Econometrics.