Cita APA (7a ed.)

Berlin, I., & Hardy, H. (1991). The crooked timber of humanity: Chapters in the history of ideas (1st publ.). John Murray.

Cita Chicago Style (17a ed.)

Berlin, Isaiah, y Henry Hardy. The Crooked Timber of Humanity: Chapters in the History of Ideas. 1st publ. London: John Murray, 1991.

Cita MLA (9a ed.)

Berlin, Isaiah, y Henry Hardy. The Crooked Timber of Humanity: Chapters in the History of Ideas. 1st publ. John Murray, 1991.