Scott, R. H. (1973). The pricing system. Holden-Day.
Lua i Stíl Chicago (17ú heag.)Scott, Robert Haney. The Pricing System. San Francisco: Holden-Day, 1973.
Lua MLA (9ú heag.)Scott, Robert Haney. The Pricing System. Holden-Day, 1973.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.