Griffith, J. (1990). Speaker's library of business stories, anecdotes, and humor. Barnes & Noble Books.
Lua i Stíl Chicago (17ú heag.)Griffith, Joe. Speaker's Library of Business Stories, Anecdotes, and Humor. New York: Barnes & Noble Books, 1990.
Lua MLA (8ú heag.)Griffith, Joe. Speaker's Library of Business Stories, Anecdotes, and Humor. Barnes & Noble Books, 1990.
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