एपीए उद्धरण

Robert L Heilbroner. (1989). The worldly philosophers: The lives, times and ideas of the graet economic tinkers. New York: Simon and Schuster.

शिकागो स्टाइल उद्धरण

Robert L Heilbroner. The Worldly Philosophers: The Lives, Times and Ideas of the Graet Economic Tinkers. New York: Simon and Schuster, 1989.

एमएलए उद्धरण

Robert L Heilbroner. The Worldly Philosophers: The Lives, Times and Ideas of the Graet Economic Tinkers. New York: Simon and Schuster, 1989.