Cita APA (7th ed.)

Spencer, J. E., & Geary, R. C. (1974). Exercises in mathematical economics and econometrics, with outlines of theory. Hafner Press.

Cita Chicago (17th ed.)

Spencer, John Ervine, i Robert Charles Geary. Exercises in Mathematical Economics and Econometrics, with Outlines of Theory. New York: Hafner Press, 1974.

Cita MLA (9th ed.)

Spencer, John Ervine, i Robert Charles Geary. Exercises in Mathematical Economics and Econometrics, with Outlines of Theory. Hafner Press, 1974.