APA (7th ed.) Citation

Ryan, A., & Cohen, G. A. (1979). The Idea of freedom: Essays in honour of Isaiah Berlin. Oxford University Press.

Chicago Style (17th ed.) Citation

Ryan, Alan, and G. A. Cohen. The Idea of Freedom: Essays in Honour of Isaiah Berlin. Oxford [etc.]: Oxford University Press, 1979.

MLA (9th ed.) Citation

Ryan, Alan, and G. A. Cohen. The Idea of Freedom: Essays in Honour of Isaiah Berlin. Oxford University Press, 1979.