Samuelson, P. (1995). Economics. McGraw Hill.
Lua i Stíl Chicago (17ú heag.)Samuelson, Paul. Economics. New york: McGraw Hill, 1995.
Lua MLA (9ú heag.)Samuelson, Paul. Economics. McGraw Hill, 1995.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.