Cita APA (7th ed.)

Peterson, W. L. (1974). Principles of Economics: Macro. Irwin.

Cita Chicago (17th ed.)

Peterson, Willis L. Principles of Economics: Macro. London: Irwin, 1974.

Cita MLA (9th ed.)

Peterson, Willis L. Principles of Economics: Macro. Irwin, 1974.