Cita APA (7a ed.)

Lipsey, R. G., Sparks, G. R., & Steiner, P. O. (1979). Economics (3rd. ed.). Harper & Row.

Cita Chicago Style (17a ed.)

Lipsey, Richard G., Gordon R. Sparks, y Peter O. Steiner. Economics. 3rd. ed. New York: Harper & Row, 1979.

Cita MLA (8a ed.)

Lipsey, Richard G., et al. Economics. 3rd. ed. Harper & Row, 1979.