LEWIS, R. (1977). Foundation In Accounting Ii Richard Lewis Dan Michael Firth. Prentice-Hall International.
Lua i Stíl Chicago (17ú heag.)LEWIS, Richard. Foundation In Accounting Ii Richard Lewis Dan Michael Firth. Prentice-Hall International, 1977.
Lua MLA (8ú heag.)LEWIS, Richard. Foundation In Accounting Ii Richard Lewis Dan Michael Firth. Prentice-Hall International, 1977.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.