Gravelle Hugh. (2008). Microeconomics. Pearson Eduication.
Lua i Stíl Chicago (17ú heag.)Gravelle Hugh. Microeconomics. New Delhi: Pearson Eduication, 2008.
Lua MLA (9ú heag.)Gravelle Hugh. Microeconomics. Pearson Eduication, 2008.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.