SILVER DAVID A. (1985). ENTREPRENEURIAL MEGABUCKS THE 100....TWENTY FIVE YEARS. JOHN WILEY AND SONS.
Lua i Stíl Chicago (17ú heag.)SILVER DAVID A. ENTREPRENEURIAL MEGABUCKS THE 100....TWENTY FIVE YEARS. NEW YORK: JOHN WILEY AND SONS, 1985.
Lua MLA (9ú heag.)SILVER DAVID A. ENTREPRENEURIAL MEGABUCKS THE 100....TWENTY FIVE YEARS. JOHN WILEY AND SONS, 1985.
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