Champions of Freedom the Ludwig von Mises Lecture Series: Rhodes Boyson, Leonard E. Read, Philip M. Crane, Anthony H. Harrigan, Henry Hazlitt and Roger A. Freeman. Vol.4. 1. ed. Hilsdale : College Press, 1977. 99 s. [Počet ex. : 1, z toho voľných 1, prezenčne 0]