APA Style

Heilbroner, R, L. (1967). The Worldly philosophers : the lives, times, and ideas of the great economic thinkers (3). New York: Simon And Schuster.

MLA Style

Heilbroner, Robert, L.. "The Worldly philosophers : the lives, times, and ideas of the great economic thinkers". 3 New York: Simon And Schuster, 1967. Text.