Sobel, R. (1970). The curbstone brokers: The origins of the American Stock Exchange. Macmillan [u.a.].

Sobel, Robert. The Curbstone Brokers: The Origins of the American Stock Exchange. New York [u.a.]: Macmillan [u.a.], 1970.

Sobel, Robert. The Curbstone Brokers: The Origins of the American Stock Exchange. Macmillan [u.a.], 1970.