@book{89162,
	author = {Heilbroner, Robert L. },
	title = {The worldly philosophers :},
	publisher = {Simon and Schuster,},
	year = {c1980.},
	series = {A Touchstone book},
	address = {New York :},
	edition = {5th ed., completely rev. for the 1980's.},
	note = {Includes index.}
}