Civil and academic freedom in the USSR and eastern Europe / Jiri Pelikan ... [et al.]. - Pelikán, Jiři. (OLS)http://pul/name/42196 (Spokesman Books, 1975)
Bibliografia in nota.

Richard Rorty and the image of modernity / James Bradley. - Bradley, James. (OLS)http://pul/name/63487 (Heythrop College, 1991)