APA

Hellbroner R. I, . (1953). The Worldly Philosophers: The Lives, Times And Ideas Of The Great Economic Thinkers, Seventh Edition. New York: Simon and Schuster.

Chicago

Hellbroner R. I, . 1953. The Worldly Philosophers: The Lives, Times And Ideas Of The Great Economic Thinkers, Seventh Edition. New York: Simon and Schuster.

Harvard

Hellbroner R. I, . (1953). The Worldly Philosophers: The Lives, Times And Ideas Of The Great Economic Thinkers, Seventh Edition. New York: Simon and Schuster.

MLA

Hellbroner R. I, . The Worldly Philosophers: The Lives, Times And Ideas Of The Great Economic Thinkers, Seventh Edition. New York: Simon and Schuster. 1953.