Peterson, W. L. (1974). Principles of Economics: Macro. Irwin.
Lua i Stíl Chicago (17ú heag.)Peterson, Willis L. Principles of Economics: Macro. London: Irwin, 1974.
Lua MLA (9ú heag.)Peterson, Willis L. Principles of Economics: Macro. Irwin, 1974.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.