APA

Griffiths William E, Hill R. C. & Judge G. G. (1993). Learning and practicing econometrics. New York: Wiley.

Chicago

Griffiths William E, Hill R Carter and Judge George G. 1993. Learning and practicing econometrics. New York: Wiley.

Harvard

Griffiths William E, Hill R. C. and Judge G. G. (1993). Learning and practicing econometrics. New York: Wiley.

MLA

Griffiths William E, Hill R Carter and Judge George G. Learning and practicing econometrics. New York: Wiley. 1993.