Berlin, I., Hardy, H., & Annan, N. (1981). Personal impressions: Isaiah Berlin. Ed. by Henty Hardy. With an Introd. by Noel Annan. Viking Press.

Berlin, Isaiah, Henry Hardy, and Noel Annan. Personal Impressions: Isaiah Berlin. Ed. by Henty Hardy. With an Introd. by Noel Annan. New York: Viking Press, 1981.

Berlin, Isaiah, et al. Personal Impressions: Isaiah Berlin. Ed. by Henty Hardy. With an Introd. by Noel Annan. Viking Press, 1981.