Heilbroner, R. L. (1999). The worldly philosophers: The lives, times, and ideas of the great economic thinkers (Revised Seventh edition.). Simon & Schuster.
Lua i Stíl Chicago (17ú heag.)Heilbroner, Robert L. The Worldly Philosophers: The Lives, Times, and Ideas of the Great Economic Thinkers. Revised Seventh edition. New York: Simon & Schuster, 1999.
Lua MLA (9ú heag.)Heilbroner, Robert L. The Worldly Philosophers: The Lives, Times, and Ideas of the Great Economic Thinkers. Revised Seventh edition. Simon & Schuster, 1999.
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