Miller, R. L. (1991). Economics, today and tomorrow (3rd ed.). Glencoe/McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)Miller, Roger LeRoy. Economics, Today and Tomorrow. 3rd ed. Mission Hills, Calif: Glencoe/McGraw-Hill, 1991.
Lua MLA (8ú heag.)Miller, Roger LeRoy. Economics, Today and Tomorrow. 3rd ed. Glencoe/McGraw-Hill, 1991.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.