Samuelson, P. (2001). Economics (17th.). TMH.
Lua i Stíl Chicago (17ú heag.)Samuelson, Paul. Economics. 17th. New delhi: TMH, 2001.
Lua MLA (9ú heag.)Samuelson, Paul. Economics. 17th. TMH, 2001.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.