Krames, J. A. (2002). The Jack Welch lexicon of leadership. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)Krames, Jeffrey A. The Jack Welch Lexicon of Leadership. New York: McGraw-Hill, 2002.
Lua MLA (8ú heag.)Krames, Jeffrey A. The Jack Welch Lexicon of Leadership. McGraw-Hill, 2002.
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