PETERSON, W. L. (1980). Principles Of Economics Macro Wiilis L Peterson. Ricard D. Irwin, Inc.
Lua i Stíl Chicago (17ú heag.)PETERSON, Willis L. Principles Of Economics Macro Wiilis L Peterson. Ricard D. Irwin, Inc, 1980.
Lua MLA (8ú heag.)PETERSON, Willis L. Principles Of Economics Macro Wiilis L Peterson. Ricard D. Irwin, Inc, 1980.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.