Mandell, L. (1992). Investment Lewis Mandell And Thomas J. O'brien. Macmillan.
Lua i Stíl Chicago (17ú heag.)Mandell, Lewis. Investment Lewis Mandell And Thomas J. O'brien. Macmillan, 1992.
Lua MLA (8ú heag.)Mandell, Lewis. Investment Lewis Mandell And Thomas J. O'brien. Macmillan, 1992.
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