Friedman, M. (1962). Price theory. Aldine Publishing Company.
Lua i Stíl Chicago (17ú heag.)Friedman, Milton. Price Theory. Chicago, Ill: Aldine Publishing Company, 1962.
Lua MLA (9ú heag.)Friedman, Milton. Price Theory. Aldine Publishing Company, 1962.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.