APA (7th ed.) Citation

WALTERS, A. (1968). An introduction to econometrics. Macmillan.

Chicago Style (17th ed.) Citation

WALTERS, A.A. An Introduction to Econometrics. London: Macmillan, 1968.

MLA (9th ed.) Citation

WALTERS, A.A. An Introduction to Econometrics. Macmillan, 1968.