SHARPE, W. F. (1981). Investments William F. Sharphe. Prentice-Hall.
Lua i Stíl Chicago (17ú heag.)SHARPE, William F. Investments William F. Sharphe. Prentice-Hall, 1981.
Lua MLA (8ú heag.)SHARPE, William F. Investments William F. Sharphe. Prentice-Hall, 1981.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.