Dolan, E. G., & Lindsey, D. E. (1991). Economics (6th ed.). Dryden Press.
Lua i Stíl Chicago (17ú heag.)Dolan, Edwin G., agus David Earl Lindsey. Economics. 6th ed. Chicago: Dryden Press, 1991.
Lua MLA (8ú heag.)Dolan, Edwin G., agus David Earl Lindsey. Economics. 6th ed. Dryden Press, 1991.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.