Cita APA

Berlin, I., Hardy, H., & Kelly, A. (1978). Russian thinkers. Penguin Books.

Citación estilo Chicago

Berlin, Isaiah, Henry Hardy, y Aileen Kelly. Russian Thinkers. Harmondsworth: Penguin Books, 1978.

Cita MLA

Berlin, Isaiah, et al. Russian Thinkers. Penguin Books, 1978.