FRANK, R. H. (2004). Study Guide for use with Principle of Macroeconomics second edition. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)FRANK, Robert H. Study Guide for Use with Principle of Macroeconomics Second Edition. McGraw-Hill, 2004.
Lua MLA (8ú heag.)FRANK, Robert H. Study Guide for Use with Principle of Macroeconomics Second Edition. McGraw-Hill, 2004.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.