Lipsey, C. (2011). Economics. Oxford University Press.
Lua i Stíl Chicago (17ú heag.)Lipsey, Chrystal. Economics. Delhi: Oxford University Press, 2011.
Lua MLA (9ú heag.)Lipsey, Chrystal. Economics. Oxford University Press, 2011.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.