Cita APA (7a ed.)

Henderson, J. V., & Poole, W. (1991). Principles of economics. Heath.

Cita Chicago Style (17a ed.)

Henderson, J. Vernon, y William Poole. Principles of Economics. Boston [etc.]: Heath, 1991.

Cita MLA (9a ed.)

Henderson, J. Vernon, y William Poole. Principles of Economics. Heath, 1991.