Sharpe, W. F. (1978). Investments. Prentice-Hall.
Lua i Stíl Chicago (17ú heag.)Sharpe, William F. Investments. Englewood Cliffs, N.J.: Prentice-Hall, 1978.
Lua MLA (9ú heag.)Sharpe, William F. Investments. Prentice-Hall, 1978.
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