Cita APA (7th ed.)

Johnston, J. (1997). Econometric methods (4th ed.). McGraw-Hill.

Cita Chicago (17th ed.)

Johnston, Jack. Econometric Methods. 4th ed. New York: McGraw-Hill, 1997.

Cita MLA (9th ed.)

Johnston, Jack. Econometric Methods. 4th ed. McGraw-Hill, 1997.