APA-ийн эшлэл(7 дахь хэвлэлт)

ebrary, Inc, & Bell, D. (2009). Political thought and international relations: Variations on a realist theme. Oxford University Press.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

ebrary, Inc, ба Duncan Bell. Political Thought and International Relations: Variations on a Realist Theme. Oxford ; New York: Oxford University Press, 2009.

MLA -ийн эшлэл (9 дэх хэвлэлт)

ebrary, Inc, ба Duncan Bell. Political Thought and International Relations: Variations on a Realist Theme. Oxford University Press, 2009.