Παραπομπή APA

Berlin, I., Hardy, H., & kelly, A. (1948). Russian thinkers.

Παραπομπή Chicago Style

Berlin, Isaiah, Henry Hardy, και Aileen kelly. Russian Thinkers. London, Penguin Books, 1948.

Παραπομπή MLA

Berlin, Isaiah, et al. Russian Thinkers. 1948.