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