APA (7th ed.) Citation

Valavanis Vail, S., & Conrad, A. H. (1959). Econometrics: An introduction to maximum likelihood methods. McGraw-Hill.

Chicago Style (17th ed.) Citation

Valavanis Vail, Stefan, and Alfred H. Conrad. Econometrics: An Introduction to Maximum Likelihood Methods. New York: McGraw-Hill, 1959.

MLA (9th ed.) Citation

Valavanis Vail, Stefan, and Alfred H. Conrad. Econometrics: An Introduction to Maximum Likelihood Methods. McGraw-Hill, 1959.