Seligman, B. B. (1971). The potentates: Business and businessmen in American history. Dial Press.
Lua i Stíl Chicago (17ú heag.)Seligman, Ben B. The Potentates: Business and Businessmen in American History. New York: Dial Press, 1971.
Lua MLA (8ú heag.)Seligman, Ben B. The Potentates: Business and Businessmen in American History. Dial Press, 1971.
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