Samuelson Paul. (2012). Economics (19th.). Tata McGraw Hill.
Lua i Stíl Chicago (17ú heag.)Samuelson Paul. Economics. 19th. New Delhi: Tata McGraw Hill, 2012.
Lua MLA (9ú heag.)Samuelson Paul. Economics. 19th. Tata McGraw Hill, 2012.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.