Radcliffc, R. C. (1989). Investment Concept, Analysis, Strategy Robert C Radcliffc. Harper.
Lua i Stíl Chicago (17ú heag.)Radcliffc, Robert C. Investment Concept, Analysis, Strategy Robert C Radcliffc. Harper, 1989.
Lua MLA (8ú heag.)Radcliffc, Robert C. Investment Concept, Analysis, Strategy Robert C Radcliffc. Harper, 1989.
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