Gaya APA

Berlin, I. (1991). The crooked timber of humanity: Chapters in the history of ideas. Ed. by Henry Hardy. . New York: New York Alfred A Knopf.

Gaya MLA

Berlin, Isaiah. "The crooked timber of humanity: Chapters in the history of ideas. Ed. by Henry Hardy. ". New York: New York Alfred A Knopf, 1991. Buku.