Popper, K. R. (1952). The open society and its enemies ([2d ed. rev.].). Routledge & K. Paul.
Lua i Stíl Chicago (17ú heag.)Popper, Karl R. The Open Society and Its Enemies. [2d ed. rev.]. London: Routledge & K. Paul, 1952.
Lua MLA (9ú heag.)Popper, Karl R. The Open Society and Its Enemies. [2d ed. rev.]. Routledge & K. Paul, 1952.