APA-viite

Skirbekk, G., & Gilje , N. (2000). A history of Western Thought: From Ancient Greece to the twentieth century. Routledge.

Chicago-tyylinen lähdeviittaus

Skirbekk, Gunnar, ja Nils Gilje. A History of Western Thought: From Ancient Greece to the Twentieth Century. London: Routledge, 2000.

MLA-viite

Skirbekk, Gunnar, ja Nils Gilje. A History of Western Thought: From Ancient Greece to the Twentieth Century. Routledge, 2000.